From bbd4840872f70e3342308c6965ab196ed2606af1 Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Sun, 8 Jan 2017 17:20:32 +0100 Subject: sys: extend kvm support Add new pseudo syscall syz_kvm_setup_cpu that setups VCPU into interesting states for execution. KVM is too difficult to setup otherwise. Lots of improvements possible, but this is a starting point. --- executor/kvm.h | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 executor/kvm.h (limited to 'executor/kvm.h') diff --git a/executor/kvm.h b/executor/kvm.h new file mode 100644 index 000000000..feb21490d --- /dev/null +++ b/executor/kvm.h @@ -0,0 +1,75 @@ +// Copyright 2017 syzkaller project authors. All rights reserved. +// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. + +#define ADDR_TEXT 0x0000 +#define ADDR_GDT 0x1000 +#define ADDR_LDT 0x1800 +#define ADDR_PML4 0x2000 +#define ADDR_PDP 0x3000 +#define ADDR_PD 0x4000 +#define ADDR_STACK0 0x0f80 +#define ADDR_VAR_HLT 0x2800 +#define ADDR_VAR_SYSRET 0x2808 +#define ADDR_VAR_SYSEXIT 0x2810 +#define ADDR_VAR_IDT 0x3800 +#define ADDR_VAR_TSS64 0x3a00 +#define ADDR_VAR_TSS64_CPL3 0x3c00 +#define ADDR_VAR_TSS16 0x3d00 +#define ADDR_VAR_TSS16_2 0x3e00 +#define ADDR_VAR_TSS16_CPL3 0x3f00 +#define ADDR_VAR_TSS32 0x4800 +#define ADDR_VAR_TSS32_2 0x4a00 +#define ADDR_VAR_TSS32_CPL3 0x4c00 +#define ADDR_VAR_TSS32_VM86 0x4e00 +#define ADDR_VAR_VMXON_PTR 0x5f00 +#define ADDR_VAR_VMCS_PTR 0x5f08 +#define ADDR_VAR_VMEXIT_PTR 0x5f10 +#define ADDR_VAR_VMXON 0x6000 +#define ADDR_VAR_VMCS 0x7000 +#define ADDR_VAR_VMEXIT_CODE 0x9000 +#define ADDR_VAR_USER_CODE 0x9100 +#define ADDR_VAR_USER_CODE2 0x9120 + +#define SEL_LDT (1 << 3) +#define SEL_CS16 (2 << 3) +#define SEL_DS16 (3 << 3) +#define SEL_CS16_CPL3 ((4 << 3) + 3) +#define SEL_DS16_CPL3 ((5 << 3) + 3) +#define SEL_CS32 (6 << 3) +#define SEL_DS32 (7 << 3) +#define SEL_CS32_CPL3 ((8 << 3) + 3) +#define SEL_DS32_CPL3 ((9 << 3) + 3) +#define SEL_CS64 (10 << 3) +#define SEL_DS64 (11 << 3) +#define SEL_CS64_CPL3 ((12 << 3) + 3) +#define SEL_DS64_CPL3 ((13 << 3) + 3) +#define SEL_CGATE16 (14 << 3) +#define SEL_TGATE16 (15 << 3) +#define SEL_CGATE32 (16 << 3) +#define SEL_TGATE32 (17 << 3) +#define SEL_CGATE64 (18 << 3) +#define SEL_CGATE64_HI (19 << 3) +#define SEL_TSS16 (20 << 3) +#define SEL_TSS16_2 (21 << 3) +#define SEL_TSS16_CPL3 ((22 << 3) + 3) +#define SEL_TSS32 (23 << 3) +#define SEL_TSS32_2 (24 << 3) +#define SEL_TSS32_CPL3 ((25 << 3) + 3) +#define SEL_TSS32_VM86 (26 << 3) +#define SEL_TSS64 (27 << 3) +#define SEL_TSS64_HI (28 << 3) +#define SEL_TSS64_CPL3 ((29 << 3) + 3) +#define SEL_TSS64_CPL3_HI (30 << 3) + +#define MSR_IA32_FEATURE_CONTROL 0x3a +#define MSR_IA32_VMX_BASIC 0x480 +#define MSR_IA32_SMBASE 0x9e +#define MSR_IA32_SYSENTER_CS 0x174 +#define MSR_IA32_SYSENTER_ESP 0x175 +#define MSR_IA32_SYSENTER_EIP 0x176 +#define MSR_IA32_STAR 0xC0000081 +#define MSR_IA32_LSTAR 0xC0000082 +#define MSR_IA32_VMX_PROCBASED_CTLS2 0x48B + +#define NEXT_INSN $0xbadc0de +#define PREFIX_SIZE 0xba1d -- cgit mrf-deployment