[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 08 of 20] Emulation of guest VMPTRST
# HG changeset patch # User Eddie Dong <eddie.dong@xxxxxxxxx> # Date 1307607849 -28800 # Node ID 002f9d4c15841dc0b98b0427a480202b7117fdcd # Parent c880f0642b4014b1f13b3a05ddc8ebb140c8c1a1 Emulation of guest VMPTRST Signed-off-by: Qing He <qing.he@xxxxxxxxx> Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx> diff -r c880f0642b40 -r 002f9d4c1584 xen/arch/x86/hvm/vmx/vmx.c --- a/xen/arch/x86/hvm/vmx/vmx.c Thu Jun 09 16:24:09 2011 +0800 +++ b/xen/arch/x86/hvm/vmx/vmx.c Thu Jun 09 16:24:09 2011 +0800 @@ -2449,11 +2449,15 @@ asmlinkage void vmx_vmexit_handler(struc update_guest_eip(); break; + case EXIT_REASON_VMPTRST: + if ( nvmx_handle_vmptrst(regs) == X86EMUL_OKAY ) + update_guest_eip(); + break; + case EXIT_REASON_MWAIT_INSTRUCTION: case EXIT_REASON_MONITOR_INSTRUCTION: case EXIT_REASON_VMCLEAR: case EXIT_REASON_VMLAUNCH: - case EXIT_REASON_VMPTRST: case EXIT_REASON_VMREAD: case EXIT_REASON_VMRESUME: case EXIT_REASON_VMWRITE: diff -r c880f0642b40 -r 002f9d4c1584 xen/arch/x86/hvm/vmx/vvmx.c --- a/xen/arch/x86/hvm/vmx/vvmx.c Thu Jun 09 16:24:09 2011 +0800 +++ b/xen/arch/x86/hvm/vmx/vvmx.c Thu Jun 09 16:24:09 2011 +0800 @@ -456,3 +456,25 @@ out: return X86EMUL_OKAY; } +int nvmx_handle_vmptrst(struct cpu_user_regs *regs) +{ + struct vcpu *v = current; + struct vmx_inst_decoded decode; + struct nestedvcpu *nvcpu = &vcpu_nestedhvm(v); + unsigned long gpa = 0; + int rc; + + rc = decode_vmx_inst(regs, &decode, &gpa, 0); + if ( rc != X86EMUL_OKAY ) + return rc; + + gpa = nvcpu->nv_vvmcxaddr; + + rc = hvm_copy_to_guest_virt(decode.mem, &gpa, decode.len, 0); + if ( rc != HVMCOPY_okay ) + return X86EMUL_EXCEPTION; + + vmreturn(regs, VMSUCCEED); + return X86EMUL_OKAY; +} + diff -r c880f0642b40 -r 002f9d4c1584 xen/include/asm-x86/hvm/vmx/vvmx.h --- a/xen/include/asm-x86/hvm/vmx/vvmx.h Thu Jun 09 16:24:09 2011 +0800 +++ b/xen/include/asm-x86/hvm/vmx/vvmx.h Thu Jun 09 16:24:09 2011 +0800 @@ -154,6 +154,7 @@ void __set_vvmcs(void *vvmcs, u32 vmcs_e void nvmx_destroy_vmcs(struct vcpu *v); int nvmx_handle_vmptrld(struct cpu_user_regs *regs); +int nvmx_handle_vmptrst(struct cpu_user_regs *regs); #endif /* __ASM_X86_HVM_VVMX_H__ */ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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