[Hygon][6.6][Backport] KVM: nSVM: Set exit_code_hi to -1 when synthesizing SVM_EXIT_ERR (failed VMRUN) · Pull Request !747 · OpenCloudOS/OpenCloudOS-Kernel

Validating kvm-unit-tests on 7490 or 7447v platforms results in dozens of unexpected failures.

Environment details:
- OS: TencentOS 4.4
- Kernel: 6.6.198 or the latest linux-6.6/devel
- kvm-unit-tests version: 05b7715f ("svm_tests: access rflags and rax via this_cpu_guest_regs()")
- Platform: 7490 or 7447v

Failure log:
FAIL: vmrun intercept check
FAIL: asid_zero
FAIL: EFER.SVME: 500
FAIL: Test EFER 9:8: 1700
FAIL: Test EFER 63:16: 11500
FAIL: Test EFER 63:16: 101500
FAIL: Test EFER 63:16: 1001500
FAIL: Test EFER 63:16: 10001500
FAIL: Test EFER 63:16: 100001500
FAIL: Test EFER 63:16: 1000001500
FAIL: Test EFER 63:16: 10000001500
FAIL: Test EFER 63:16: 100000001500
FAIL: Test EFER 63:16: 1000000001500
FAIL: Test EFER 63:16: 10000000001500
FAIL: Test EFER 63:16: 100000000001500
FAIL: Test EFER 63:16: 1000000000001500
FAIL: EFER.LME=1 (1500), CR0.PG=1 (80010011) and CR4.PAE=0 (40000)
FAIL: EFER.LME=1 (1500), CR0.PG=1 and CR0.PE=0 (80010010)
FAIL: Test CR0 CD=0,NW=1: a0010011
FAIL: Test CR0 63:32: 180010011
FAIL: Test CR0 63:32: 1080010011
FAIL: Test CR0 63:32: 10080010011
FAIL: Test CR0 63:32: 100080010011
FAIL: Test CR0 63:32: 1000080010011
FAIL: Test CR0 63:32: 10000080010011
FAIL: Test CR0 63:32: 100000080010011
FAIL: Test CR0 63:32: 1000000080010011
FAIL: Test CR3 63:0: 10000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 20000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 40000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 80000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 100000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 200000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 400000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 800000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 1000000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 2000000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 4000000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR3 63:0: 8000000001125000, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 42020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 44020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 48020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: c0020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 2040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 4040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 8040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 10040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 20040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 40040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 80040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 42020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 44020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 48020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: c0020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 2040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 4040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 8040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 10040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 20040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 40040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 31:12: 80040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 100040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 1000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 10000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 100000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 1000000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 10000000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 100000000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test CR4 63:32: 1000000000040020, wanted exit 0xffffffffffffffff, got 0xffffffff
FAIL: Test DR6 63:32: 1ffff0ff0
FAIL: Test DR6 63:32: 10ffff0ff0
FAIL: Test DR6 63:32: 100ffff0ff0
FAIL: Test DR6 63:32: 1000ffff0ff0
FAIL: Test DR6 63:32: 10000ffff0ff0
FAIL: Test DR6 63:32: 100000ffff0ff0
FAIL: Test DR6 63:32: 1000000ffff0ff0
FAIL: Test DR6 63:32: 10000000ffff0ff0
FAIL: Test DR7 63:32: 100000400
FAIL: Test DR7 63:32: 1000000400
FAIL: Test DR7 63:32: 10000000400
FAIL: Test DR7 63:32: 100000000400
FAIL: Test DR7 63:32: 1000000000400
FAIL: Test DR7 63:32: 10000000000400
FAIL: Test DR7 63:32: 100000000000400
FAIL: Test DR7 63:32: 1000000000000400
FAIL: Test MSRPM address: ffffffffe000
FAIL: Test MSRPM address: ffffffffe001
FAIL: Test MSRPM address: fffffffff000
FAIL: Test IOPM address: ffffffffe000
FAIL: Test IOPM address: fffffffff000

Reported-by: Yongwei Xu <xuyongwei@hygon.cn>

To resolve the above errors, we need to backport the fix for `exit_code_hi`. Specifically, this requires pulling in the following upstream commit: "KVM: nSVM: Set exit_code_hi to -1 when synthesizing SVM_EXIT_ERR (failed VMRUN)"

类型	指派人员	状态
审查	chinaljp030 刘诗	已完成 (0/0人)
测试	chinaljp030 刘诗	已完成 (0/0人)

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