[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 4/9] nested vmx: enable Descriptor-table exiting for L1 VMM
Signed-off-by: Dongxiao Xu <dongxiao.xu@xxxxxxxxx> --- xen/arch/x86/hvm/vmx/vvmx.c | 8 +++++++- xen/include/asm-x86/hvm/vmx/vmcs.h | 1 + 2 files changed, 8 insertions(+), 1 deletions(-) diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c index 14a3d62..23c949b 100644 --- a/xen/arch/x86/hvm/vmx/vvmx.c +++ b/xen/arch/x86/hvm/vmx/vvmx.c @@ -1300,7 +1300,7 @@ int nvmx_msr_read_intercept(unsigned int msr, u64 *msr_content) break; case MSR_IA32_VMX_PROCBASED_CTLS2: /* 1-seetings */ - data = 0; + data = SECONDARY_EXEC_DESCRIPTOR_TABLE_EXITING; /* 0-settings */ tmp = 0; data = (data << 32) | tmp; @@ -1507,6 +1507,12 @@ int nvmx_n2_vmexit_handler(struct cpu_user_regs *regs, if ( ctrl & CPU_BASED_MONITOR_TRAP_FLAG) nvcpu->nv_vmexit_pending = 1; break; + case EXIT_REASON_ACCESS_GDTR_OR_IDTR: + case EXIT_REASON_ACCESS_LDTR_OR_TR: + ctrl = __n2_secondary_exec_control(v); + if ( ctrl & SECONDARY_EXEC_DESCRIPTOR_TABLE_EXITING ) + nvcpu->nv_vmexit_pending = 1; + break; /* L1 has priority handling several other types of exits */ case EXIT_REASON_HLT: ctrl = __n2_exec_control(v); diff --git a/xen/include/asm-x86/hvm/vmx/vmcs.h b/xen/include/asm-x86/hvm/vmx/vmcs.h index 4f58991..053de17 100644 --- a/xen/include/asm-x86/hvm/vmx/vmcs.h +++ b/xen/include/asm-x86/hvm/vmx/vmcs.h @@ -179,6 +179,7 @@ extern u32 vmx_vmentry_control; #define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001 #define SECONDARY_EXEC_ENABLE_EPT 0x00000002 +#define SECONDARY_EXEC_DESCRIPTOR_TABLE_EXITING 0x00000004 #define SECONDARY_EXEC_ENABLE_RDTSCP 0x00000008 #define SECONDARY_EXEC_ENABLE_VPID 0x00000020 #define SECONDARY_EXEC_WBINVD_EXITING 0x00000040 -- 1.7.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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