From: Ricardo Koller <ricarkol@google.com> To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, drjones@redhat.com Cc: pbonzini@redhat.com, maz@kernel.org, alexandru.elisei@arm.com, eric.auger@redhat.com, oupton@google.com, reijiw@google.com, rananta@google.com, Ricardo Koller <ricarkol@google.com> Subject: [PATCH v3 1/4] KVM: arm64: selftests: add timer_get_tval() lib function Date: Tue, 22 Mar 2022 10:23:16 -0700 [thread overview] Message-ID: <20220322172319.2943101-2-ricarkol@google.com> (raw) In-Reply-To: <20220322172319.2943101-1-ricarkol@google.com> Add timer_get_tval() into the arch timer library functions in selftests/kvm. Bonus: change the set_tval function to get an int32_t (tval is signed). Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Ricardo Koller <ricarkol@google.com> --- .../selftests/kvm/include/aarch64/arch_timer.h | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/include/aarch64/arch_timer.h b/tools/testing/selftests/kvm/include/aarch64/arch_timer.h index cb7c03de3a21..93f35a4fc1aa 100644 --- a/tools/testing/selftests/kvm/include/aarch64/arch_timer.h +++ b/tools/testing/selftests/kvm/include/aarch64/arch_timer.h @@ -79,7 +79,7 @@ static inline uint64_t timer_get_cval(enum arch_timer timer) return 0; } -static inline void timer_set_tval(enum arch_timer timer, uint32_t tval) +static inline void timer_set_tval(enum arch_timer timer, int32_t tval) { switch (timer) { case VIRTUAL: @@ -95,6 +95,22 @@ static inline void timer_set_tval(enum arch_timer timer, uint32_t tval) isb(); } +static inline int32_t timer_get_tval(enum arch_timer timer) +{ + isb(); + switch (timer) { + case VIRTUAL: + return (int32_t)read_sysreg(cntv_tval_el0); + case PHYSICAL: + return (int32_t)read_sysreg(cntp_tval_el0); + default: + GUEST_ASSERT_1(0, timer); + } + + /* We should not reach here */ + return 0; +} + static inline void timer_set_ctl(enum arch_timer timer, uint32_t ctl) { switch (timer) { -- 2.35.1.894.gb6a874cedc-goog
WARNING: multiple messages have this Message-ID (diff)
From: Ricardo Koller <ricarkol@google.com> To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, drjones@redhat.com Cc: maz@kernel.org, pbonzini@redhat.com Subject: [PATCH v3 1/4] KVM: arm64: selftests: add timer_get_tval() lib function Date: Tue, 22 Mar 2022 10:23:16 -0700 [thread overview] Message-ID: <20220322172319.2943101-2-ricarkol@google.com> (raw) In-Reply-To: <20220322172319.2943101-1-ricarkol@google.com> Add timer_get_tval() into the arch timer library functions in selftests/kvm. Bonus: change the set_tval function to get an int32_t (tval is signed). Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Ricardo Koller <ricarkol@google.com> --- .../selftests/kvm/include/aarch64/arch_timer.h | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/include/aarch64/arch_timer.h b/tools/testing/selftests/kvm/include/aarch64/arch_timer.h index cb7c03de3a21..93f35a4fc1aa 100644 --- a/tools/testing/selftests/kvm/include/aarch64/arch_timer.h +++ b/tools/testing/selftests/kvm/include/aarch64/arch_timer.h @@ -79,7 +79,7 @@ static inline uint64_t timer_get_cval(enum arch_timer timer) return 0; } -static inline void timer_set_tval(enum arch_timer timer, uint32_t tval) +static inline void timer_set_tval(enum arch_timer timer, int32_t tval) { switch (timer) { case VIRTUAL: @@ -95,6 +95,22 @@ static inline void timer_set_tval(enum arch_timer timer, uint32_t tval) isb(); } +static inline int32_t timer_get_tval(enum arch_timer timer) +{ + isb(); + switch (timer) { + case VIRTUAL: + return (int32_t)read_sysreg(cntv_tval_el0); + case PHYSICAL: + return (int32_t)read_sysreg(cntp_tval_el0); + default: + GUEST_ASSERT_1(0, timer); + } + + /* We should not reach here */ + return 0; +} + static inline void timer_set_ctl(enum arch_timer timer, uint32_t ctl) { switch (timer) { -- 2.35.1.894.gb6a874cedc-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2022-03-22 17:23 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-03-22 17:23 [PATCH v3 0/4] KVM: arm64: selftests: Add edge cases tests for the arch timer Ricardo Koller 2022-03-22 17:23 ` Ricardo Koller 2022-03-22 17:23 ` Ricardo Koller [this message] 2022-03-22 17:23 ` [PATCH v3 1/4] KVM: arm64: selftests: add timer_get_tval() lib function Ricardo Koller 2022-03-22 17:23 ` [PATCH v3 2/4] KVM: selftests: add is_cpu_online() utility function Ricardo Koller 2022-03-22 17:23 ` Ricardo Koller 2022-03-24 17:19 ` Sean Christopherson 2022-03-24 17:19 ` Sean Christopherson 2022-03-24 17:29 ` Ricardo Koller 2022-03-24 17:29 ` Ricardo Koller 2022-03-22 17:23 ` [PATCH v3 3/4] KVM: arm64: selftests: add arch_timer_edge_cases Ricardo Koller 2022-03-22 17:23 ` Ricardo Koller 2022-03-22 17:23 ` [PATCH v3 4/4] KVM: arm64: selftests: add edge cases tests into arch_timer_edge_cases Ricardo Koller 2022-03-22 17:23 ` Ricardo Koller
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