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KVM: selftests: Add arch ucall.h and inline simple arch hooks

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Add an architecture specific ucall.h and inline the simple arch hooks,
e.g. the init hook for everything except ARM, and the actual "do ucall"
hook for everything except x86 (which should be simple, but temporarily
isn't due to carrying a workaround).

Having a per-arch ucall header will allow adding a #define for the
expected KVM exit reason for a ucall that is colocated (for everything
except x86) with the ucall itself.

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230731203026.1192091-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson
2023-07-31 13:30:24 -07:00
parent 289c2b4db8
commit b35f4c73d3
9 changed files with 66 additions and 35 deletions
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11
tools/testing/selftests/kvm/lib/riscv/ucall.c
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@@ -10,10 +10,6 @@
#include "kvm_util.h"
#include "processor.h"
void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
{
}
struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
unsigned long arg1, unsigned long arg2,
unsigned long arg3, unsigned long arg4,
@@ -40,13 +36,6 @@ struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
return ret;
}
void ucall_arch_do_ucall(vm_vaddr_t uc)
{
sbi_ecall(KVM_RISCV_SELFTESTS_SBI_EXT,
KVM_RISCV_SELFTESTS_SBI_UCALL,
uc, 0, 0, 0, 0, 0);
}
void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
{
struct kvm_run *run = vcpu->run;