From eb3c79e64a70fb8f7473e30fa07e89c1ecc2c9bb Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 24 Nov 2009 15:20:15 +0200 Subject: KVM: x86 emulator: limit instructions to 15 bytes While we are never normally passed an instruction that exceeds 15 bytes, smp games can cause us to attempt to interpret one, which will cause large latencies in non-preempt hosts. Cc: stable@kernel.org Signed-off-by: Avi Kivity --- arch/x86/include/asm/kvm_emulate.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/include/asm/kvm_emulate.h') diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index b7ed2c423116..7c18e1230f54 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -129,7 +129,7 @@ struct decode_cache { u8 seg_override; unsigned int d; unsigned long regs[NR_VCPU_REGS]; - unsigned long eip; + unsigned long eip, eip_orig; /* modrm */ u8 modrm; u8 modrm_mod; -- cgit v1.2.1