[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 05/11] nested vmx: fix handling of RDTSC
If L0 is to handle the TSC access, then we need to update guest EIP by calling update_guest_eip(). Signed-off-by: Dongxiao Xu <dongxiao.xu@xxxxxxxxx> --- xen/arch/x86/hvm/vmx/vmx.c | 2 +- xen/arch/x86/hvm/vmx/vvmx.c | 1 + xen/include/asm-x86/hvm/vmx/vmx.h | 2 ++ 3 files changed, 4 insertions(+), 1 deletions(-) diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c index 3bb0d99..9fb9562 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -1555,7 +1555,7 @@ static int get_instruction_length(void) return len; } -static void update_guest_eip(void) +void update_guest_eip(void) { struct cpu_user_regs *regs = guest_cpu_user_regs(); unsigned long x; diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c index d8b7ce5..dab9551 100644 --- a/xen/arch/x86/hvm/vmx/vvmx.c +++ b/xen/arch/x86/hvm/vmx/vvmx.c @@ -1614,6 +1614,7 @@ int nvmx_n2_vmexit_handler(struct cpu_user_regs *regs, tsc += __get_vvmcs(nvcpu->nv_vvmcx, TSC_OFFSET); regs->eax = (uint32_t)tsc; regs->edx = (uint32_t)(tsc >> 32); + update_guest_eip(); return 1; } diff --git a/xen/include/asm-x86/hvm/vmx/vmx.h b/xen/include/asm-x86/hvm/vmx/vmx.h index c4c2fe8..aa5b080 100644 --- a/xen/include/asm-x86/hvm/vmx/vmx.h +++ b/xen/include/asm-x86/hvm/vmx/vmx.h @@ -399,6 +399,8 @@ void ept_p2m_init(struct p2m_domain *p2m); void ept_walk_table(struct domain *d, unsigned long gfn); void setup_ept_dump(void); +void update_guest_eip(void); + /* EPT violation qualifications definitions */ #define _EPT_READ_VIOLATION 0 #define EPT_READ_VIOLATION (1UL<<_EPT_READ_VIOLATION) -- 1.7.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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