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author | Paul Mackerras <paulus@samba.org> | 2012-11-04 18:15:43 (GMT) |
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committer | Alexander Graf <agraf@suse.de> | 2012-12-06 00:34:01 (GMT) |
commit | b0a94d4e23201c7559bb8f8657cfb629561288f2 (patch) | |
tree | 33a2706900728e9218fca06bde3c8a47fb86254a /arch/powerpc/include/asm | |
parent | 1cc8ed0b13ae6e076a1dd1f18da508b48c7aa05a (diff) | |
download | linux-fsl-qoriq-b0a94d4e23201c7559bb8f8657cfb629561288f2.tar.xz |
KVM: PPC: Book3S PR: Emulate PURR, SPURR and DSCR registers
This adds basic emulation of the PURR and SPURR registers. We assume
we are emulating a single-threaded core, so these advance at the same
rate as the timebase. A Linux kernel running on a POWER7 expects to
be able to access these registers and is not prepared to handle a
program interrupt on accessing them.
This also adds a very minimal emulation of the DSCR (data stream
control register). Writes are ignored and reads return zero.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/include/asm')
-rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 46763d10..5a56e1c 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -81,6 +81,8 @@ struct kvmppc_vcpu_book3s { u64 sdr1; u64 hior; u64 msr_mask; + u64 purr_offset; + u64 spurr_offset; #ifdef CONFIG_PPC_BOOK3S_32 u32 vsid_pool[VSID_POOL_SIZE]; u32 vsid_next; |