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-rw-r--r--arch/arm/kernel/entry-armv.S1
-rw-r--r--arch/arm/mach-imx/gpc.c6
-rw-r--r--arch/arm/mm/mmu.c21
-rw-r--r--arch/arm64/kernel/sleep.S10
-rw-r--r--arch/arm64/mm/dump.c6
-rw-r--r--arch/arm64/mm/numa.c2
-rw-r--r--arch/parisc/include/uapi/asm/errno.h4
-rw-r--r--arch/parisc/kernel/processor.c8
-rw-r--r--arch/parisc/kernel/time.c12
-rw-r--r--arch/s390/include/asm/facilities_src.h24
-rw-r--r--arch/s390/include/asm/kvm_host.h2
-rw-r--r--arch/s390/kernel/asm-offsets.c1
-rw-r--r--arch/s390/kvm/gaccess.c37
-rw-r--r--arch/s390/kvm/guestdbg.c59
-rw-r--r--arch/s390/kvm/intercept.c1
-rw-r--r--arch/s390/kvm/interrupt.c98
-rw-r--r--arch/s390/kvm/kvm-s390.c70
-rw-r--r--arch/s390/kvm/kvm-s390.h14
-rw-r--r--arch/s390/kvm/priv.c21
-rw-r--r--arch/x86/kernel/cpu/microcode/amd.c9
-rw-r--r--arch/x86/kernel/smpboot.c25
-rw-r--r--arch/x86/power/hibernate_64.c2
22 files changed, 277 insertions, 156 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index bc5f507..9f157e7 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -295,6 +295,7 @@ __und_svc_fault:
bl __und_fault
__und_svc_finish:
+ get_thread_info tsk
ldr r5, [sp, #S_PSR] @ Get SVC cpsr
svc_exit r5 @ return from exception
UNWIND(.fnend )
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index fd87205..0df062d 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.c
@@ -271,6 +271,12 @@ static int __init imx_gpc_init(struct device_node *node,
for (i = 0; i < IMR_NUM; i++)
writel_relaxed(~0, gpc_base + GPC_IMR1 + i * 4);
+ /*
+ * Clear the OF_POPULATED flag set in of_irq_init so that
+ * later the GPC power domain driver will not be skipped.
+ */
+ of_node_clear_flag(node, OF_POPULATED);
+
return 0;
}
IRQCHIP_DECLARE(imx_gpc, "fsl,imx6q-gpc", imx_gpc_init);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 62f4d01..6344913 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -728,7 +728,8 @@ static void *__init late_alloc(unsigned long sz)
{
void *ptr = (void *)__get_free_pages(PGALLOC_GFP, get_order(sz));
- BUG_ON(!ptr);
+ if (!ptr || !pgtable_page_ctor(virt_to_page(ptr)))
+ BUG();
return ptr;
}
@@ -1155,10 +1156,19 @@ void __init sanity_check_meminfo(void)
{
phys_addr_t memblock_limit = 0;
int highmem = 0;
- phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1;
+ u64 vmalloc_limit;
struct memblock_region *reg;
bool should_use_highmem = false;
+ /*
+ * Let's use our own (unoptimized) equivalent of __pa() that is
+ * not affected by wrap-arounds when sizeof(phys_addr_t) == 4.
+ * The result is used as the upper bound on physical memory address
+ * and may itself be outside the valid range for which phys_addr_t
+ * and therefore __pa() is defined.
+ */
+ vmalloc_limit = (u64)(uintptr_t)vmalloc_min - PAGE_OFFSET + PHYS_OFFSET;
+
for_each_memblock(memory, reg) {
phys_addr_t block_start = reg->base;
phys_addr_t block_end = reg->base + reg->size;
@@ -1183,10 +1193,11 @@ void __init sanity_check_meminfo(void)
if (reg->size > size_limit) {
phys_addr_t overlap_size = reg->size - size_limit;
- pr_notice("Truncating RAM at %pa-%pa to -%pa",
- &block_start, &block_end, &vmalloc_limit);
- memblock_remove(vmalloc_limit, overlap_size);
+ pr_notice("Truncating RAM at %pa-%pa",
+ &block_start, &block_end);
block_end = vmalloc_limit;
+ pr_cont(" to -%pa", &block_end);
+ memblock_remove(vmalloc_limit, overlap_size);
should_use_highmem = true;
}
}
diff --git a/arch/arm64/kernel/sleep.S b/arch/arm64/kernel/sleep.S
index 9a3aec9..ccf79d8 100644
--- a/arch/arm64/kernel/sleep.S
+++ b/arch/arm64/kernel/sleep.S
@@ -101,12 +101,20 @@ ENTRY(cpu_resume)
bl el2_setup // if in EL2 drop to EL1 cleanly
/* enable the MMU early - so we can access sleep_save_stash by va */
adr_l lr, __enable_mmu /* __cpu_setup will return here */
- ldr x27, =_cpu_resume /* __enable_mmu will branch here */
+ adr_l x27, _resume_switched /* __enable_mmu will branch here */
adrp x25, idmap_pg_dir
adrp x26, swapper_pg_dir
b __cpu_setup
ENDPROC(cpu_resume)
+ .pushsection ".idmap.text", "ax"
+_resume_switched:
+ ldr x8, =_cpu_resume
+ br x8
+ENDPROC(_resume_switched)
+ .ltorg
+ .popsection
+
ENTRY(_cpu_resume)
mrs x1, mpidr_el1
adrp x8, mpidr_hash
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
index f94b80e..9c3e75d 100644
--- a/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/dump.c
@@ -242,7 +242,7 @@ static void note_page(struct pg_state *st, unsigned long addr, unsigned level,
static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
{
- pte_t *pte = pte_offset_kernel(pmd, 0);
+ pte_t *pte = pte_offset_kernel(pmd, 0UL);
unsigned long addr;
unsigned i;
@@ -254,7 +254,7 @@ static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
{
- pmd_t *pmd = pmd_offset(pud, 0);
+ pmd_t *pmd = pmd_offset(pud, 0UL);
unsigned long addr;
unsigned i;
@@ -271,7 +271,7 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
{
- pud_t *pud = pud_offset(pgd, 0);
+ pud_t *pud = pud_offset(pgd, 0UL);
unsigned long addr;
unsigned i;
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index c7fe3ec..5bb15ea 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -23,6 +23,8 @@
#include <linux/module.h>
#include <linux/of.h>
+#include <asm/acpi.h>
+
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
nodemask_t numa_nodes_parsed __initdata;
diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h
index c0ae625..274d5bc 100644
--- a/arch/parisc/include/uapi/asm/errno.h
+++ b/arch/parisc/include/uapi/asm/errno.h
@@ -97,10 +97,10 @@
#define ENOTCONN 235 /* Transport endpoint is not connected */
#define ESHUTDOWN 236 /* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS 237 /* Too many references: cannot splice */
-#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */
#define ETIMEDOUT 238 /* Connection timed out */
#define ECONNREFUSED 239 /* Connection refused */
-#define EREMOTERELEASE 240 /* Remote peer released connection */
+#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */
+#define EREMOTERELEASE 240 /* Remote peer released connection */
#define EHOSTDOWN 241 /* Host is down */
#define EHOSTUNREACH 242 /* No route to host */
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 5adc339..0c2a94a 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -51,8 +51,6 @@ EXPORT_SYMBOL(_parisc_requires_coherency);
DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
-extern int update_cr16_clocksource(void); /* from time.c */
-
/*
** PARISC CPU driver - claim "device" and initialize CPU data structures.
**
@@ -228,12 +226,6 @@ static int processor_probe(struct parisc_device *dev)
}
#endif
- /* If we've registered more than one cpu,
- * we'll use the jiffies clocksource since cr16
- * is not synchronized between CPUs.
- */
- update_cr16_clocksource();
-
return 0;
}
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 505cf1a..4b0b963 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -221,18 +221,6 @@ static struct clocksource clocksource_cr16 = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-int update_cr16_clocksource(void)
-{
- /* since the cr16 cycle counters are not synchronized across CPUs,
- we'll check if we should switch to a safe clocksource: */
- if (clocksource_cr16.rating != 0 && num_online_cpus() > 1) {
- clocksource_change_rating(&clocksource_cr16, 0);
- return 1;
- }
-
- return 0;
-}
-
void __init start_cpu_itimer(void)
{
unsigned int cpu = smp_processor_id();
diff --git a/arch/s390/include/asm/facilities_src.h b/arch/s390/include/asm/facilities_src.h
index 4917728..3b758f6 100644
--- a/arch/s390/include/asm/facilities_src.h
+++ b/arch/s390/include/asm/facilities_src.h
@@ -55,4 +55,28 @@ static struct facility_def facility_defs[] = {
-1 /* END */
}
},
+ {
+ .name = "FACILITIES_KVM",
+ .bits = (int[]){
+ 0, /* N3 instructions */
+ 1, /* z/Arch mode installed */
+ 2, /* z/Arch mode active */
+ 3, /* DAT-enhancement */
+ 4, /* idte segment table */
+ 5, /* idte region table */
+ 6, /* ASN-and-LX reuse */
+ 7, /* stfle */
+ 8, /* enhanced-DAT 1 */
+ 9, /* sense-running-status */
+ 10, /* conditional sske */
+ 13, /* ipte-range */
+ 14, /* nonquiescing key-setting */
+ 73, /* transactional execution */
+ 75, /* access-exception-fetch/store indication */
+ 76, /* msa extension 3 */
+ 77, /* msa extension 4 */
+ 78, /* enhanced-DAT 2 */
+ -1 /* END */
+ }
+ },
};
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 8e5daf7..876173c 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -28,7 +28,7 @@
#define KVM_S390_BSCA_CPU_SLOTS 64
#define KVM_S390_ESCA_CPU_SLOTS 248
-#define KVM_MAX_VCPUS KVM_S390_ESCA_CPU_SLOTS
+#define KVM_MAX_VCPUS 255
#define KVM_USER_MEM_SLOTS 32
/*
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 1f95cc1..f3df9e0 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -125,6 +125,7 @@ int main(void)
OFFSET(__LC_STFL_FAC_LIST, lowcore, stfl_fac_list);
OFFSET(__LC_STFLE_FAC_LIST, lowcore, stfle_fac_list);
OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code);
+ OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code);
OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address);
OFFSET(__LC_LAST_BREAK, lowcore, breaking_event_addr);
OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw);
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 5420020..4aa8a7e 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -495,6 +495,18 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
tec = (struct trans_exc_code_bits *)&pgm->trans_exc_code;
switch (code) {
+ case PGM_PROTECTION:
+ switch (prot) {
+ case PROT_TYPE_ALC:
+ tec->b60 = 1;
+ /* FALL THROUGH */
+ case PROT_TYPE_DAT:
+ tec->b61 = 1;
+ break;
+ default: /* LA and KEYC set b61 to 0, other params undefined */
+ return code;
+ }
+ /* FALL THROUGH */
case PGM_ASCE_TYPE:
case PGM_PAGE_TRANSLATION:
case PGM_REGION_FIRST_TRANS:
@@ -504,8 +516,7 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
/*
* op_access_id only applies to MOVE_PAGE -> set bit 61
* exc_access_id has to be set to 0 for some instructions. Both
- * cases have to be handled by the caller. We can always store
- * exc_access_id, as it is undefined for non-ar cases.
+ * cases have to be handled by the caller.
*/
tec->addr = gva >> PAGE_SHIFT;
tec->fsi = mode == GACC_STORE ? FSI_STORE : FSI_FETCH;
@@ -516,25 +527,13 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
case PGM_ASTE_VALIDITY:
case PGM_ASTE_SEQUENCE:
case PGM_EXTENDED_AUTHORITY:
+ /*
+ * We can always store exc_access_id, as it is
+ * undefined for non-ar cases. It is undefined for
+ * most DAT protection exceptions.
+ */
pgm->exc_access_id = ar;
break;
- case PGM_PROTECTION:
- switch (prot) {
- case PROT_TYPE_ALC:
- tec->b60 = 1;
- /* FALL THROUGH */
- case PROT_TYPE_DAT:
- tec->b61 = 1;
- tec->addr = gva >> PAGE_SHIFT;
- tec->fsi = mode == GACC_STORE ? FSI_STORE : FSI_FETCH;
- tec->as = psw_bits(vcpu->arch.sie_block->gpsw).as;
- /* exc_access_id is undefined for most cases */
- pgm->exc_access_id = ar;
- break;
- default: /* LA and KEYC set b61 to 0, other params undefined */
- break;
- }
- break;
}
return code;
}
diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 31a0533..d7c6a7f 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -206,7 +206,7 @@ static int __import_wp_info(struct kvm_vcpu *vcpu,
int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
struct kvm_guest_debug *dbg)
{
- int ret = 0, nr_wp = 0, nr_bp = 0, i, size;
+ int ret = 0, nr_wp = 0, nr_bp = 0, i;
struct kvm_hw_breakpoint *bp_data = NULL;
struct kvm_hw_wp_info_arch *wp_info = NULL;
struct kvm_hw_bp_info_arch *bp_info = NULL;
@@ -216,17 +216,10 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
else if (dbg->arch.nr_hw_bp > MAX_BP_COUNT)
return -EINVAL;
- size = dbg->arch.nr_hw_bp * sizeof(struct kvm_hw_breakpoint);
- bp_data = kmalloc(size, GFP_KERNEL);
- if (!bp_data) {
- ret = -ENOMEM;
- goto error;
- }
-
- if (copy_from_user(bp_data, dbg->arch.hw_bp, size)) {
- ret = -EFAULT;
- goto error;
- }
+ bp_data = memdup_user(dbg->arch.hw_bp,
+ sizeof(*bp_data) * dbg->arch.nr_hw_bp);
+ if (IS_ERR(bp_data))
+ return PTR_ERR(bp_data);
for (i = 0; i < dbg->arch.nr_hw_bp; i++) {
switch (bp_data[i].type) {
@@ -241,17 +234,19 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu,
}
}
- size = nr_wp * sizeof(struct kvm_hw_wp_info_arch);
- if (size > 0) {
- wp_info = kmalloc(size, GFP_KERNEL);
+ if (nr_wp > 0) {
+ wp_info = kmalloc_array(nr_wp,
+ sizeof(*wp_info),
+ GFP_KERNEL);
if (!wp_info) {
ret = -ENOMEM;
goto error;
}
}
- size = nr_bp * sizeof(struct kvm_hw_bp_info_arch);
- if (size > 0) {
- bp_info = kmalloc(size, GFP_KERNEL);
+ if (nr_bp > 0) {
+ bp_info = kmalloc_array(nr_bp,
+ sizeof(*bp_info),
+ GFP_KERNEL);
if (!bp_info) {
ret = -ENOMEM;
goto error;
@@ -382,14 +377,20 @@ void kvm_s390_prepare_debug_exit(struct kvm_vcpu *vcpu)
vcpu->guest_debug &= ~KVM_GUESTDBG_EXIT_PENDING;
}
+#define PER_CODE_MASK (PER_EVENT_MASK >> 24)
+#define PER_CODE_BRANCH (PER_EVENT_BRANCH >> 24)
+#define PER_CODE_IFETCH (PER_EVENT_IFETCH >> 24)
+#define PER_CODE_STORE (PER_EVENT_STORE >> 24)
+#define PER_CODE_STORE_REAL (PER_EVENT_STORE_REAL >> 24)
+
#define per_bp_event(code) \
- (code & (PER_EVENT_IFETCH | PER_EVENT_BRANCH))
+ (code & (PER_CODE_IFETCH | PER_CODE_BRANCH))
#define per_write_wp_event(code) \
- (code & (PER_EVENT_STORE | PER_EVENT_STORE_REAL))
+ (code & (PER_CODE_STORE | PER_CODE_STORE_REAL))
static int debug_exit_required(struct kvm_vcpu *vcpu)
{
- u32 perc = (vcpu->arch.sie_block->perc << 24);
+ u8 perc = vcpu->arch.sie_block->perc;
struct kvm_debug_exit_arch *debug_exit = &vcpu->run->debug.arch;
struct kvm_hw_wp_info_arch *wp_info = NULL;
struct kvm_hw_bp_info_arch *bp_info = NULL;
@@ -444,7 +445,7 @@ int kvm_s390_handle_per_ifetch_icpt(struct kvm_vcpu *vcpu)
const u8 ilen = kvm_s390_get_ilen(vcpu);
struct kvm_s390_pgm_info pgm_info = {
.code = PGM_PER,
- .per_code = PER_EVENT_IFETCH >> 24,
+ .per_code = PER_CODE_IFETCH,
.per_address = __rewind_psw(vcpu->arch.sie_block->gpsw, ilen),
};
@@ -458,33 +459,33 @@ int kvm_s390_handle_per_ifetch_icpt(struct kvm_vcpu *vcpu)
static void filter_guest_per_event(struct kvm_vcpu *vcpu)
{
- u32 perc = vcpu->arch.sie_block->perc << 24;
+ const u8 perc = vcpu->arch.sie_block->perc;
u64 peraddr = vcpu->arch.sie_block->peraddr;
u64 addr = vcpu->arch.sie_block->gpsw.addr;
u64 cr9 = vcpu->arch.sie_block->gcr[9];
u64 cr10 = vcpu->arch.sie_block->gcr[10];
u64 cr11 = vcpu->arch.sie_block->gcr[11];
/* filter all events, demanded by the guest */
- u32 guest_perc = perc & cr9 & PER_EVENT_MASK;
+ u8 guest_perc = perc & (cr9 >> 24) & PER_CODE_MASK;
if (!guest_per_enabled(vcpu))
guest_perc = 0;
/* filter "successful-branching" events */
- if (guest_perc & PER_EVENT_BRANCH &&
+ if (guest_perc & PER_CODE_BRANCH &&
cr9 & PER_CONTROL_BRANCH_ADDRESS &&
!in_addr_range(addr, cr10, cr11))
- guest_perc &= ~PER_EVENT_BRANCH;
+ guest_perc &= ~PER_CODE_BRANCH;
/* filter "instruction-fetching" events */
- if (guest_perc & PER_EVENT_IFETCH &&
+ if (guest_perc & PER_CODE_IFETCH &&
!in_addr_range(peraddr, cr10, cr11))
- guest_perc &= ~PER_EVENT_IFETCH;
+ guest_perc &= ~PER_CODE_IFETCH;
/* All other PER events will be given to the guest */
/* TODO: Check altered address/address space */
- vcpu->arch.sie_block->perc = guest_perc >> 24;
+ vcpu->arch.sie_block->perc = guest_perc;
if (!guest_perc)
vcpu->arch.sie_block->iprcc &= ~PGM_PER;
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index dfd0ca2..1cab8a1 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -29,6 +29,7 @@ static const intercept_handler_t instruction_handlers[256] = {
[0x01] = kvm_s390_handle_01,
[0x82] = kvm_s390_handle_lpsw,
[0x83] = kvm_s390_handle_diag,
+ [0xaa] = kvm_s390_handle_aa,
[0xae] = kvm_s390_handle_sigp,
[0xb2] = kvm_s390_handle_b2,
[0xb6] = kvm_s390_handle_stctl,
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 24524c0..be4db07 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -24,6 +24,8 @@
#include <asm/sclp.h>
#include <asm/isc.h>
#include <asm/gmap.h>
+#include <asm/switch_to.h>
+#include <asm/nmi.h>
#include "kvm-s390.h"
#include "gaccess.h"
#include "trace-s390.h"
@@ -40,6 +42,7 @@ static int sca_ext_call_pending(struct kvm_vcpu *vcpu, int *src_id)
if (!(atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_ECALL_PEND))
return 0;
+ BUG_ON(!kvm_s390_use_sca_entries());
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
struct esca_block *sca = vcpu->kvm->arch.sca;
@@ -68,6 +71,7 @@ static int sca_inject_ext_call(struct kvm_vcpu *vcpu, int src_id)
{
int expect, rc;
+ BUG_ON(!kvm_s390_use_sca_entries());
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
struct esca_block *sca = vcpu->kvm->arch.sca;
@@ -109,6 +113,8 @@ static void sca_clear_ext_call(struct kvm_vcpu *vcpu)
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
int rc, expect;
+ if (!kvm_s390_use_sca_entries())
+ return;
atomic_andnot(CPUSTAT_ECALL_PEND, li->cpuflags);
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
@@ -400,12 +406,78 @@ static int __must_check __deliver_pfault_init(struct kvm_vcpu *vcpu)
return rc ? -EFAULT : 0;
}
+static int __write_machine_check(struct kvm_vcpu *vcpu,
+ struct kvm_s390_mchk_info *mchk)
+{
+ unsigned long ext_sa_addr;
+ freg_t fprs[NUM_FPRS];
+ union mci mci;
+ int rc;
+
+ mci.val = mchk->mcic;
+ /* take care of lazy register loading via vcpu load/put */
+ save_fpu_regs();
+ save_access_regs(vcpu->run->s.regs.acrs);
+
+ /* Extended save area */
+ rc = read_guest_lc(vcpu, __LC_VX_SAVE_AREA_ADDR, &ext_sa_addr,
+ sizeof(unsigned long));
+ /* Only bits 0-53 are used for address formation */
+ ext_sa_addr &= ~0x3ffUL;
+ if (!rc && mci.vr && ext_sa_addr && test_kvm_facility(vcpu->kvm, 129)) {
+ if (write_guest_abs(vcpu, ext_sa_addr, vcpu->run->s.regs.vrs,
+ 512))
+ mci.vr = 0;
+ } else {
+ mci.vr = 0;
+ }
+
+ /* General interruption information */
+ rc |= put_guest_lc(vcpu, 1, (u8 __user *) __LC_AR_MODE_ID);
+ rc |= write_guest_lc(vcpu, __LC_MCK_OLD_PSW,
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= put_guest_lc(vcpu, mci.val, (u64 __user *) __LC_MCCK_CODE);
+
+ /* Register-save areas */
+ if (MACHINE_HAS_VX) {
+ convert_vx_to_fp(fprs, (__vector128 *) vcpu->run->s.regs.vrs);
+ rc |= write_guest_lc(vcpu, __LC_FPREGS_SAVE_AREA, fprs, 128);
+ } else {
+ rc |= write_guest_lc(vcpu, __LC_FPREGS_SAVE_AREA,
+ vcpu->run->s.regs.fprs, 128);
+ }
+ rc |= write_guest_lc(vcpu, __LC_GPREGS_SAVE_AREA,
+ vcpu->run->s.regs.gprs, 128);
+ rc |= put_guest_lc(vcpu, current->thread.fpu.fpc,
+ (u32 __user *) __LC_FP_CREG_SAVE_AREA);
+ rc |= put_guest_lc(vcpu, vcpu->arch.sie_block->todpr,
+ (u32 __user *) __LC_TOD_PROGREG_SAVE_AREA);
+ rc |= put_guest_lc(vcpu, kvm_s390_get_cpu_timer(vcpu),
+ (u64 __user *) __LC_CPU_TIMER_SAVE_AREA);
+ rc |= put_guest_lc(vcpu, vcpu->arch.sie_block->ckc >> 8,
+ (u64 __user *) __LC_CLOCK_COMP_SAVE_AREA);
+ rc |= write_guest_lc(vcpu, __LC_AREGS_SAVE_AREA,
+ &vcpu->run->s.regs.acrs, 64);
+ rc |= write_guest_lc(vcpu, __LC_CREGS_SAVE_AREA,
+ &vcpu->arch.sie_block->gcr, 128);
+
+ /* Extended interruption information */
+ rc |= put_guest_lc(vcpu, mchk->ext_damage_code,
+ (u32 __user *) __LC_EXT_DAMAGE_CODE);
+ rc |= put_guest_lc(vcpu, mchk->failing_storage_address,
+ (u64 __user *) __LC_MCCK_FAIL_STOR_ADDR);
+ rc |= write_guest_lc(vcpu, __LC_PSW_SAVE_AREA, &mchk->fixed_logout,
+ sizeof(mchk->fixed_logout));
+ return rc ? -EFAULT : 0;
+}
+
static int __must_check __deliver_machine_check(struct kvm_vcpu *vcpu)
{
struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
struct kvm_s390_mchk_info mchk = {};
- unsigned long adtl_status_addr;
int deliver = 0;
int rc = 0;
@@ -446,29 +518,9 @@ static int __must_check __deliver_machine_check(struct kvm_vcpu *vcpu)
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
KVM_S390_MCHK,
mchk.cr14, mchk.mcic);
-
- rc = kvm_s390_vcpu_store_status(vcpu,
- KVM_S390_STORE_STATUS_PREFIXED);
- rc |= read_guest_lc(vcpu, __LC_VX_SAVE_AREA_ADDR,
- &adtl_status_addr,
- sizeof(unsigned long));
- rc |= kvm_s390_vcpu_store_adtl_status(vcpu,
- adtl_status_addr);
- rc |= put_guest_lc(vcpu, mchk.mcic,
- (u64 __user *) __LC_MCCK_CODE);
- rc |= put_guest_lc(vcpu, mchk.failing_storage_address,
- (u64 __user *) __LC_MCCK_FAIL_STOR_ADDR);
- rc |= write_guest_lc(vcpu, __LC_PSW_SAVE_AREA,
- &mchk.fixed_logout,
- sizeof(mchk.fixed_logout));
- rc |= write_guest_lc(vcpu, __LC_MCK_OLD_PSW,
- &vcpu->arch.sie_block->gpsw,
- sizeof(psw_t));
- rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
- &vcpu->arch.sie_block->gpsw,
- sizeof(psw_t));
+ rc = __write_machine_check(vcpu, &mchk);
}
- return rc ? -EFAULT : 0;
+ return rc;
}
static int __must_check __deliver_restart(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f142215..ac6c056 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -132,10 +132,7 @@ module_param(nested, int, S_IRUGO);
MODULE_PARM_DESC(nested, "Nested virtualization support");
/* upper facilities limit for kvm */
-unsigned long kvm_s390_fac_list_mask[16] = {
- 0xffe6000000000000UL,
- 0x005e000000000000UL,
-};
+unsigned long kvm_s390_fac_list_mask[16] = { FACILITIES_KVM };
unsigned long kvm_s390_fac_list_mask_size(void)
{
@@ -376,7 +373,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_NR_VCPUS:
case KVM_CAP_MAX_VCPUS:
r = KVM_S390_BSCA_CPU_SLOTS;
- if (sclp.has_esca && sclp.has_64bscao)
+ if (!kvm_s390_use_sca_entries())
+ r = KVM_MAX_VCPUS;
+ else if (sclp.has_esca && sclp.has_64bscao)
r = KVM_S390_ESCA_CPU_SLOTS;
break;
case KVM_CAP_NR_MEMSLOTS:
@@ -1553,6 +1552,8 @@ static int __kvm_ucontrol_vcpu_init(struct kvm_vcpu *vcpu)
static void sca_del_vcpu(struct kvm_vcpu *vcpu)
{
+ if (!kvm_s390_use_sca_entries())
+ return;
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
struct esca_block *sca = vcpu->kvm->arch.sca;
@@ -1570,6 +1571,13 @@ static void sca_del_vcpu(struct kvm_vcpu *vcpu)
static void sca_add_vcpu(struct kvm_vcpu *vcpu)
{
+ if (!kvm_s390_use_sca_entries()) {
+ struct bsca_block *sca = vcpu->kvm->arch.sca;
+
+ /* we still need the basic sca for the ipte control */
+ vcpu->arch.sie_block->scaoh = (__u32)(((__u64)sca) >> 32);
+ vcpu->arch.sie_block->scaol = (__u32)(__u64)sca;
+ }
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {
struct esca_block *sca = vcpu->kvm->arch.sca;
@@ -1650,6 +1658,11 @@ static int sca_can_add_vcpu(struct kvm *kvm, unsigned int id)
{
int rc;
+ if (!kvm_s390_use_sca_entries()) {
+ if (id < KVM_MAX_VCPUS)
+ return true;
+ return false;
+ }
if (id < KVM_S390_BSCA_CPU_SLOTS)
return true;
if (!sclp.has_esca || !sclp.has_64bscao)
@@ -1938,8 +1951,6 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
vcpu->arch.sie_block->eca |= 1;
if (sclp.has_sigpif)
vcpu->arch.sie_block->eca |= 0x10000000U;
- if (test_kvm_facility(vcpu->kvm, 64))
- vcpu->arch.sie_block->ecb3 |= 0x01;
if (test_kvm_facility(vcpu->kvm, 129)) {
vcpu->arch.sie_block->eca |= 0x00020000;
vcpu->arch.sie_block->ecd |= 0x20000000;
@@ -2694,6 +2705,19 @@ static void sync_regs(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
if (vcpu->arch.pfault_token == KVM_S390_PFAULT_TOKEN_INVALID)
kvm_clear_async_pf_completion_queue(vcpu);
}
+ /*
+ * If userspace sets the riccb (e.g. after migration) to a valid state,
+ * we should enable RI here instead of doing the lazy enablement.
+ */
+ if ((kvm_run->kvm_dirty_regs & KVM_SYNC_RICCB) &&
+ test_kvm_facility(vcpu->kvm, 64)) {
+ struct runtime_instr_cb *riccb =
+ (struct runtime_instr_cb *) &kvm_run->s.regs.riccb;
+
+ if (riccb->valid)
+ vcpu->arch.sie_block->ecb3 |= 0x01;
+ }
+
kvm_run->kvm_dirty_regs = 0;
}
@@ -2837,38 +2861,6 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
return kvm_s390_store_status_unloaded(vcpu, addr);
}
-/*
- * store additional status at address
- */
-int kvm_s390_store_adtl_status_unloaded(struct kvm_vcpu *vcpu,
- unsigned long gpa)
-{
- /* Only bits 0-53 are used for address formation */
- if (!(gpa & ~0x3ff))
- return 0;
-
- return write_guest_abs(vcpu, gpa & ~0x3ff,
- (void *)&vcpu->run->s.regs.vrs, 512);
-}
-
-int kvm_s390_vcpu_store_adtl_status(struct kvm_vcpu *vcpu, unsigned long addr)
-{
- if (!test_kvm_facility(vcpu->kvm, 129))
- return 0;
-
- /*
- * The guest VXRS are in the host VXRs due to the lazy
- * copying in vcpu load/put. We can simply call save_fpu_regs()
- * to save the current register state because we are in the
- * middle of a load/put cycle.
- *
- * Let's update our copies before we save it into the save area.
- */
- save_fpu_regs();
-
- return kvm_s390_store_adtl_status_unloaded(vcpu, addr);
-}
-
static void __disable_ibs_on_vcpu(struct kvm_vcpu *vcpu)
{
kvm_check_request(KVM_REQ_ENABLE_IBS, vcpu);
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index b843286..3a4e97f 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -20,6 +20,7 @@
#include <linux/kvm_host.h>
#include <asm/facility.h>
#include <asm/processor.h>
+#include <asm/sclp.h>
typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
@@ -245,6 +246,7 @@ static inline void kvm_s390_retry_instr(struct kvm_vcpu *vcpu)
/* implemented in priv.c */
int is_valid_psw(psw_t *psw);
+int kvm_s390_handle_aa(struct kvm_vcpu *vcpu);
int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
int kvm_s390_handle_e5(struct kvm_vcpu *vcpu);
int kvm_s390_handle_01(struct kvm_vcpu *vcpu);
@@ -273,10 +275,7 @@ int handle_sthyi(struct kvm_vcpu *vcpu);
void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod);
long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
-int kvm_s390_store_adtl_status_unloaded(struct kvm_vcpu *vcpu,
- unsigned long addr);
int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr);
-int kvm_s390_vcpu_store_adtl_status(struct kvm_vcpu *vcpu, unsigned long addr);
void kvm_s390_vcpu_start(struct kvm_vcpu *vcpu);
void kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu);
void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu);
@@ -389,4 +388,13 @@ static inline union ipte_control *kvm_s390_get_ipte_control(struct kvm *kvm)
return &sca->ipte_control;
}
+static inline int kvm_s390_use_sca_entries(void)
+{
+ /*
+ * Without SIGP interpretation, only SRS interpretation (if available)
+ * might use the entries. By not setting the entries and keeping them
+ * invalid, hardware will not access them but intercept.
+ */
+ return sclp.has_sigpif;
+}
#endif
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 4616038..e184353 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -32,6 +32,24 @@
#include "kvm-s390.h"
#include "trace.h"
+static int handle_ri(struct kvm_vcpu *vcpu)
+{
+ if (test_kvm_facility(vcpu->kvm, 64)) {
+ vcpu->arch.sie_block->ecb3 |= 0x01;
+ kvm_s390_retry_instr(vcpu);
+ return 0;
+ } else
+ return kvm_s390_inject_program_int(vcpu, PGM_OPERATION);
+}
+
+int kvm_s390_handle_aa(struct kvm_vcpu *vcpu)
+{
+ if ((vcpu->arch.sie_block->ipa & 0xf) <= 4)
+ return handle_ri(vcpu);
+ else
+ return -EOPNOTSUPP;
+}
+
/* Handle SCK (SET CLOCK) interception */
static int handle_set_clock(struct kvm_vcpu *vcpu)
{
@@ -1093,6 +1111,9 @@ static int handle_stctg(struct kvm_vcpu *vcpu)
static const intercept_handler_t eb_handlers[256] = {
[0x2f] = handle_lctlg,
[0x25] = handle_stctg,
+ [0x60] = handle_ri,
+ [0x61] = handle_ri,
+ [0x62] = handle_ri,
};
int kvm_s390_handle_eb(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 27a0228..b816971 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -355,6 +355,7 @@ void load_ucode_amd_ap(void)
unsigned int cpu = smp_processor_id();
struct equiv_cpu_entry *eq;
struct microcode_amd *mc;
+ u8 *cont = container;
u32 rev, eax;
u16 eq_id;
@@ -371,8 +372,11 @@ void load_ucode_amd_ap(void)
if (check_current_patch_level(&rev, false))
return;
+ /* Add CONFIG_RANDOMIZE_MEMORY offset. */
+ cont += PAGE_OFFSET - __PAGE_OFFSET_BASE;
+
eax = cpuid_eax(0x00000001);
- eq = (struct equiv_cpu_entry *)(container + CONTAINER_HDR_SZ);
+ eq = (struct equiv_cpu_entry *)(cont + CONTAINER_HDR_SZ);
eq_id = find_equiv_id(eq, eax);
if (!eq_id)
@@ -434,6 +438,9 @@ int __init save_microcode_in_initrd_amd(void)
else
container = cont_va;
+ /* Add CONFIG_RANDOMIZE_MEMORY offset. */
+ container += PAGE_OFFSET - __PAGE_OFFSET_BASE;
+
eax = cpuid_eax(0x00000001);
eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 2a6e84a..4296beb 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -100,10 +100,11 @@ EXPORT_PER_CPU_SYMBOL(cpu_info);
/* Logical package management. We might want to allocate that dynamically */
static int *physical_to_logical_pkg __read_mostly;
static unsigned long *physical_package_map __read_mostly;;
-static unsigned long *logical_package_map __read_mostly;
static unsigned int max_physical_pkg_id __read_mostly;
unsigned int __max_logical_packages __read_mostly;
EXPORT_SYMBOL(__max_logical_packages);
+static unsigned int logical_packages __read_mostly;
+static bool logical_packages_frozen __read_mostly;
/* Maximum number of SMT threads on any online core */
int __max_smt_threads __read_mostly;
@@ -277,14 +278,14 @@ int topology_update_package_map(unsigned int apicid, unsigned int cpu)
if (test_and_set_bit(pkg, physical_package_map))
goto found;
- new = find_first_zero_bit(logical_package_map, __max_logical_packages);
- if (new >= __max_logical_packages) {
+ if (logical_packages_frozen) {
physical_to_logical_pkg[pkg] = -1;
- pr_warn("APIC(%x) Package %u exceeds logical package map\n",
+ pr_warn("APIC(%x) Package %u exceeds logical package max\n",
apicid, pkg);
return -ENOSPC;
}
- set_bit(new, logical_package_map);
+
+ new = logical_packages++;
pr_info("APIC(%x) Converting physical %u to logical package %u\n",
apicid, pkg, new);
physical_to_logical_pkg[pkg] = new;
@@ -341,6 +342,7 @@ static void __init smp_init_package_map(void)
}
__max_logical_packages = DIV_ROUND_UP(total_cpus, ncpus);
+ logical_packages = 0;
/*
* Possibly larger than what we need as the number of apic ids per
@@ -352,10 +354,6 @@ static void __init smp_init_package_map(void)
memset(physical_to_logical_pkg, 0xff, size);
size = BITS_TO_LONGS(max_physical_pkg_id) * sizeof(unsigned long);
physical_package_map = kzalloc(size, GFP_KERNEL);
- size = BITS_TO_LONGS(__max_logical_packages) * sizeof(unsigned long);
- logical_package_map = kzalloc(size, GFP_KERNEL);
-
- pr_info("Max logical packages: %u\n", __max_logical_packages);
for_each_present_cpu(cpu) {
unsigned int apicid = apic->cpu_present_to_apicid(cpu);
@@ -369,6 +367,15 @@ static void __init smp_init_package_map(void)
set_cpu_possible(cpu, false);
set_cpu_present(cpu, false);
}
+
+ if (logical_packages > __max_logical_packages) {
+ pr_warn("Detected more packages (%u), then computed by BIOS data (%u).\n",
+ logical_packages, __max_logical_packages);
+ logical_packages_frozen = true;
+ __max_logical_packages = logical_packages;
+ }
+
+ pr_info("Max logical packages: %u\n", __max_logical_packages);
}
void __init smp_store_boot_cpu_info(void)
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index a3e3ccc..9634557 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -113,7 +113,7 @@ static int set_up_temporary_mappings(void)
return result;
}
- temp_level4_pgt = (unsigned long)pgd - __PAGE_OFFSET;
+ temp_level4_pgt = __pa(pgd);
return 0;
}
generated by cgit v0.10.2 at 2024-09-07 09:24:41 (GMT)