From 84fa4c35b40f364210fe3f5836f4fcc6df60ee14 Mon Sep 17 00:00:00 2001 From: Zhang Xiantao Date: Fri, 24 Aug 2012 09:49:47 +0100 Subject: [PATCH] nested vmx: Don't set bit 55 in IA32_VMX_BASIC_MSR All related IA32_VMX_TRUE_*_MSR are not implemented, so set this bit to 0, otherwise system L1VMM may get incorrect default1 class settings. Signed-off-by: Zhang Xiantao Committed-by: Keir Fraser --- xen/arch/x86/hvm/vmx/vvmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c index 2e0b79dc2d..55781e9b6c 100644 --- a/xen/arch/x86/hvm/vmx/vvmx.c +++ b/xen/arch/x86/hvm/vmx/vvmx.c @@ -1290,7 +1290,7 @@ int nvmx_msr_read_intercept(unsigned int msr, u64 *msr_content) switch (msr) { case MSR_IA32_VMX_BASIC: data = VVMCS_REVISION | ((u64)PAGE_SIZE) << 32 | - ((u64)MTRR_TYPE_WRBACK) << 50 | (1ULL << 55); + ((u64)MTRR_TYPE_WRBACK) << 50; break; case MSR_IA32_VMX_PINBASED_CTLS: /* 1-seetings */ -- 2.30.2