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67730e6c53
Use the kernel's canonical $(ARCH) paths instead of the raw target triple for KVM selftests directories. KVM selftests are quite nearly the only place in the entire kernel that using the target triple for directories, tools/testing/selftests/drivers/s390x being the lone holdout. Using the kernel's preferred nomenclature eliminates the minor, but annoying, friction of having to translate to KVM's selftests directories, e.g. for pattern matching, opening files, running selftests, etc. Opportunsitically delete file comments that reference the full path of the file, as they are obviously prone to becoming stale, and serve no known purpose. Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef SELFTEST_KVM_UTIL_ARCH_H
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#define SELFTEST_KVM_UTIL_ARCH_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "kvm_util_types.h"
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#include "test_util.h"
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extern bool is_forced_emulation_enabled;
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struct kvm_vm_arch {
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vm_vaddr_t gdt;
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vm_vaddr_t tss;
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vm_vaddr_t idt;
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uint64_t c_bit;
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uint64_t s_bit;
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int sev_fd;
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bool is_pt_protected;
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};
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static inline bool __vm_arch_has_protected_memory(struct kvm_vm_arch *arch)
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{
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return arch->c_bit || arch->s_bit;
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}
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#define vm_arch_has_protected_memory(vm) \
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__vm_arch_has_protected_memory(&(vm)->arch)
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#define vcpu_arch_put_guest(mem, __val) \
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do { \
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const typeof(mem) val = (__val); \
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\
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if (!is_forced_emulation_enabled || guest_random_bool(&guest_rng)) { \
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(mem) = val; \
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} else if (guest_random_bool(&guest_rng)) { \
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__asm__ __volatile__(KVM_FEP "mov %1, %0" \
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: "+m" (mem) \
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: "r" (val) : "memory"); \
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} else { \
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uint64_t __old = READ_ONCE(mem); \
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\
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__asm__ __volatile__(KVM_FEP LOCK_PREFIX "cmpxchg %[new], %[ptr]" \
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: [ptr] "+m" (mem), [old] "+a" (__old) \
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: [new]"r" (val) : "memory", "cc"); \
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} \
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} while (0)
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#endif // SELFTEST_KVM_UTIL_ARCH_H
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