On 2/20/24 18:13, Haibo Xu wrote:
On Wed, Feb 21, 2024 at 7:03 AM Atish Patra <atishp@xxxxxxxxxxxxxx> wrote:
On Mon, Jan 22, 2024 at 1:48 AM Haibo Xu <haibo1.xu@xxxxxxxxx> wrote:
Move vcpu_has_ext to the processor.c and rename it to __vcpu_has_ext
so that other test cases can use it for vCPU extension check.
Signed-off-by: Haibo Xu <haibo1.xu@xxxxxxxxx>
Reviewed-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx>
---
tools/testing/selftests/kvm/include/riscv/processor.h | 2 ++
tools/testing/selftests/kvm/lib/riscv/processor.c | 10 ++++++++++
tools/testing/selftests/kvm/riscv/get-reg-list.c | 11 +----------
3 files changed, 13 insertions(+), 10 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/riscv/processor.h b/tools/testing/selftests/kvm/include/riscv/processor.h
index b68b1b731a34..bd27e1c67579 100644
--- a/tools/testing/selftests/kvm/include/riscv/processor.h
+++ b/tools/testing/selftests/kvm/include/riscv/processor.h
@@ -42,6 +42,8 @@ static inline uint64_t __kvm_reg_id(uint64_t type, uint64_t idx,
#define RISCV_ISA_EXT_REG(idx) __kvm_reg_id(KVM_REG_RISCV_ISA_EXT, \
idx, KVM_REG_SIZE_ULONG)
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, int ext);
+
struct ex_regs {
unsigned long ra;
unsigned long sp;
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
index 39a1e9902dec..dad73ce18164 100644
--- a/tools/testing/selftests/kvm/lib/riscv/processor.c
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -15,6 +15,16 @@
static vm_vaddr_t exception_handlers;
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
+{
+ unsigned long value = 0;
+ int ret;
+
+ ret = __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);
+
+ return !ret && !!value;
+}
+
Not sure what was the base patch on which this was rebased. The actual
commit in the queue branch looks different.
This patch set was based on 6.7-rc8.
https://github.com/kvm-riscv/linux/commit/5563517cc2012e3326411b360c9924d3f2706c8d
Both seem to have the same bug though the tests fail now and require
the following fix.
The ext id should be uint64_t and we need to pass ext directly so that
SBI extension tests can also pass.
It's weird that 6.7-rc8 has already included Andrew's change on the ISA ext reg,
but this patch was not generated against his change.
commit bdf6aa328f137e184b0fce607fd585354c3742f1
Author: Andrew Jones <ajones@xxxxxxxxxxxxxxxx>
Date: Wed Dec 13 18:09:58 2023 +0100
RISC-V: KVM: selftests: Treat SBI ext regs like ISA ext regs
Anyway, your changes were right. Please go ahead to include them when merging.
I am not sure what happened. Probably, a merge conflict issue.
I just realized I forgot to copy paste another fix in arch timer
+++ b/tools/testing/selftests/kvm/riscv/arch_timer.c
@@ -85,7 +85,7 @@ struct kvm_vm *test_vm_create(void)
int nr_vcpus = test_args.nr_vcpus;
vm = vm_create_with_vcpus(nr_vcpus, guest_code, vcpus);
- __TEST_REQUIRE(__vcpu_has_ext(vcpus[0], KVM_RISCV_ISA_EXT_SSTC),
+ __TEST_REQUIRE(__vcpu_has_ext(vcpus[0],
RISCV_ISA_EXT_REG(KVM_RISCV_ISA_EXT_SSTC)),
Thanks,
Haibo
--- a/tools/testing/selftests/kvm/include/riscv/processor.h
+++ b/tools/testing/selftests/kvm/include/riscv/processor.h
@@ -48,7 +48,7 @@ static inline uint64_t __kvm_reg_id(uint64_t type,
uint64_t subtype,
KVM_REG_RISCV_SBI_SINGLE, \
idx, KVM_REG_SIZE_ULONG)
-bool __vcpu_has_ext(struct kvm_vcpu *vcpu, int ext);
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, uint64_t ext);
struct ex_regs {
unsigned long ra;
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c
b/tools/testing/selftests/kvm/lib/riscv/processor.c
index 282587cd4bbc..ec66d331a127 100644
--- a/tools/testing/selftests/kvm/lib/riscv/processor.c
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -15,12 +15,12 @@
static vm_vaddr_t exception_handlers;
-bool __vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, uint64_t ext)
{
unsigned long value = 0;
int ret;
- ret = __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);
+ ret = __vcpu_get_reg(vcpu, ext, &value);
return !ret && !!value;
}
With the above the fix, Both SBI/ISA extension tests pass.
# ./get-reg-list
sbi-base: PASS
sbi-sta: PASS
sbi-pmu: PASS
sbi-dbcn: PASS
aia: PASS
fp_f: PASS
fp_d: PASS
1..0 # SKIP - h not available, skipping tests
smstateen: PASS
sscofpmf: PASS
sstc: PASS
1..0 # SKIP - svinval not available, skipping tests
1..0 # SKIP - svnapot not available, skipping tests
1..0 # SKIP - svpbmt not available, skipping tests
zba: PASS
zbb: PASS
zbc: PASS
1..0 # SKIP - zbkb not available, skipping tests
1..0 # SKIP - zbkc not available, skipping tests
1..0 # SKIP - zbkx not available, skipping tests
zbs: PASS
zfa: PASS
1..0 # SKIP - zfh not available, skipping tests
1..0 # SKIP - zfhmin not available, skipping tests
zicbom: PASS
zicboz: PASS
zicntr: PASS
1..0 # SKIP - zicond not available, skipping tests
zicsr: PASS
zifencei: PASS
zihintntl: PASS
zihintpause: PASS
zihpm: PASS
static uint64_t page_align(struct kvm_vm *vm, uint64_t v)
{
return (v + vm->page_size) & ~(vm->page_size - 1);
diff --git a/tools/testing/selftests/kvm/riscv/get-reg-list.c b/tools/testing/selftests/kvm/riscv/get-reg-list.c
index 25de4b8bc347..ed29ba45588c 100644
--- a/tools/testing/selftests/kvm/riscv/get-reg-list.c
+++ b/tools/testing/selftests/kvm/riscv/get-reg-list.c
@@ -75,15 +75,6 @@ bool check_reject_set(int err)
return err == EINVAL;
}
-static inline bool vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
-{
- int ret;
- unsigned long value;
-
- ret = __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);
- return (ret) ? false : !!value;
-}
-
void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
{
unsigned long isa_ext_state[KVM_RISCV_ISA_EXT_MAX] = { 0 };
@@ -111,7 +102,7 @@ void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
__vcpu_set_reg(vcpu, RISCV_ISA_EXT_REG(s->feature), 1);
/* Double check whether the desired extension was enabled */
- __TEST_REQUIRE(vcpu_has_ext(vcpu, s->feature),
+ __TEST_REQUIRE(__vcpu_has_ext(vcpu, s->feature),
"%s not available, skipping tests\n", s->name);
}
}
--
2.34.1
--
Regards,
Atish
