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From: Andrew Jones <drjones@redhat.com>
To: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Cc: peter.maydell@linaro.org, richard.henderson@linaro.org,
	armbru@redhat.com, eric.auger@redhat.com, imammedo@redhat.com,
	alex.bennee@linaro.org, Dave.Martin@arm.com
Subject: [Qemu-devel] [PATCH v3 06/15] target/arm/cpu: Use div-round-up to determine predicate register array size
Date: Fri,  2 Aug 2019 14:25:31 +0200	[thread overview]
Message-ID: <20190802122540.26385-7-drjones@redhat.com> (raw)
In-Reply-To: <20190802122540.26385-1-drjones@redhat.com>

Unless we're guaranteed to always increase ARM_MAX_VQ by a multiple of
four, then we should use DIV_ROUND_UP to ensure we get an appropriate
array size.

Signed-off-by: Andrew Jones <drjones@redhat.com>
---
 target/arm/cpu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 94c990cddbd8..a3300f3ee7d7 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -195,7 +195,7 @@ typedef struct ARMVectorReg {
 #ifdef TARGET_AARCH64
 /* In AArch32 mode, predicate registers do not exist at all.  */
 typedef struct ARMPredicateReg {
-    uint64_t p[2 * ARM_MAX_VQ / 8] QEMU_ALIGNED(16);
+    uint64_t p[DIV_ROUND_UP(2 * ARM_MAX_VQ, 8)] QEMU_ALIGNED(16);
 } ARMPredicateReg;
 
 /* In AArch32 mode, PAC keys do not exist at all.  */
-- 
2.20.1



  parent reply	other threads:[~2019-08-02 12:28 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02 12:25 [Qemu-devel] [PATCH v3 00/15] target/arm/kvm: enable SVE in guests Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 01/15] target/arm/cpu64: Ensure kvm really supports aarch64=off Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 02/15] target/arm/cpu: Ensure we can use the pmu with kvm Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 03/15] target/arm/monitor: Introduce qmp_query_cpu_model_expansion Andrew Jones
2019-08-02 16:27   ` Richard Henderson
2019-08-03  1:28     ` Richard Henderson
2019-08-06 12:21       ` Andrew Jones
2019-08-07 15:22         ` Richard Henderson
2019-08-08  8:50           ` Andrew Jones
2019-08-08 18:37             ` Richard Henderson
2019-08-09 16:09               ` Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 04/15] tests: arm: Introduce cpu feature tests Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 05/15] target/arm/helper: zcr: Add build bug next to value range assumption Andrew Jones
2019-08-02 12:25 ` Andrew Jones [this message]
2019-08-02 16:33   ` [Qemu-devel] [PATCH v3 06/15] target/arm/cpu: Use div-round-up to determine predicate register array size Richard Henderson
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 07/15] target/arm: Allow SVE to be disabled via a CPU property Andrew Jones
2019-08-02 16:35   ` Richard Henderson
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 08/15] target/arm/cpu64: max cpu: Introduce sve<vl-bits> properties Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 09/15] target/arm/kvm64: Fix error returns Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 10/15] target/arm/kvm64: Move the get/put of fpsimd registers out Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 11/15] target/arm/kvm64: Add kvm_arch_get/put_sve Andrew Jones
2019-08-02 18:07   ` Richard Henderson
2019-08-06 12:24     ` Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 12/15] target/arm/kvm64: max cpu: Enable SVE when available Andrew Jones
2019-08-02 18:20   ` Richard Henderson
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 13/15] target/arm/kvm: scratch vcpu: Preserve input kvm_vcpu_init features Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 14/15] target/arm/cpu64: max cpu: Support sve properties with KVM Andrew Jones
2019-08-02 12:25 ` [Qemu-devel] [PATCH v3 15/15] target/arm/kvm: host cpu: Add support for sve<vl-bits> properties Andrew Jones
2019-08-10  1:31 ` [Qemu-devel] [PATCH] HACK: Centralize sve property checks Richard Henderson
2019-09-04  8:32   ` Andrew Jones
2019-09-04 17:17     ` Richard Henderson
2019-09-04 17:18     ` Richard Henderson
2019-08-15  8:31 ` [Qemu-devel] [PATCH v3 00/15] target/arm/kvm: enable SVE in guests Peter Maydell
2019-08-15  8:45   ` Andrew Jones

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