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From: Akihiko Odaki <akihiko.odaki@daynix.com>
To: Peter Maydell <peter.maydell@linaro.org>,
	 Thomas Huth <thuth@redhat.com>,
	Laurent Vivier <lvivier@redhat.com>,
	 Paolo Bonzini <pbonzini@redhat.com>,
	Cornelia Huck <cohuck@redhat.com>
Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, kvm@vger.kernel.org,
	 Akihiko Odaki <akihiko.odaki@daynix.com>
Subject: [PATCH v4 6/6] hvf: arm: Do not advance PC when raising an exception
Date: Sat, 20 Jul 2024 18:30:54 +0900	[thread overview]
Message-ID: <20240720-pmu-v4-6-2a2b28f6b08f@daynix.com> (raw)
In-Reply-To: <20240720-pmu-v4-0-2a2b28f6b08f@daynix.com>

This is identical with commit 30a1690f2402 ("hvf: arm: Do not advance
PC when raising an exception") but for writes instead of reads.

Fixes: a2260983c655 ("hvf: arm: Add support for GICv3")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 target/arm/hvf/hvf.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index adcdfae0b17f..c1496ad5be9b 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -1586,10 +1586,10 @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val)
     case SYSREG_ICC_SGI1R_EL1:
     case SYSREG_ICC_SRE_EL1:
         /* Call the TCG sysreg handler. This is only safe for GICv3 regs. */
-        if (!hvf_sysreg_write_cp(cpu, reg, val)) {
-            hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized());
+        if (hvf_sysreg_write_cp(cpu, reg, val)) {
+            return 0;
         }
-        return 0;
+        break;
     case SYSREG_MDSCR_EL1:
         env->cp15.mdscr_el1 = val;
         return 0;

-- 
2.45.2



  parent reply	other threads:[~2024-07-20  9:32 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-20  9:30 [PATCH v4 0/6] target/arm/kvm: Report PMU unavailability Akihiko Odaki
2024-07-20  9:30 ` [PATCH v4 1/6] target/arm/kvm: Set PMU for host only when available Akihiko Odaki
2024-07-20  9:30 ` [PATCH v4 2/6] target/arm/kvm: Do not silently remove PMU Akihiko Odaki
2024-07-20  9:30 ` [PATCH v4 3/6] target/arm: Always add pmu property for Armv7-A/R+ Akihiko Odaki
2024-07-29 15:13   ` Peter Maydell
2024-07-29 16:32     ` Akihiko Odaki
2024-07-20  9:30 ` [PATCH v4 4/6] hvf: arm: Raise an exception for sysreg by default Akihiko Odaki
2024-07-20  9:30 ` [PATCH v4 5/6] hvf: arm: Properly disable PMU Akihiko Odaki
2024-07-20  9:30 ` Akihiko Odaki [this message]
2024-08-02  6:41   ` [PATCH v4 6/6] hvf: arm: Do not advance PC when raising an exception Michael Tokarev
2024-08-02  6:44     ` Akihiko Odaki
2024-08-02  7:32       ` Michael Tokarev
2024-07-29 15:15 ` [PATCH v4 0/6] target/arm/kvm: Report PMU unavailability Peter Maydell

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