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From: Fabiano Rosas <farosas@linux.ibm.com>
To: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, aik@ozlabs.ru
Subject: [PATCH 3/3] KVM: PPC: Fix mmio length message
Date: Thu, 23 Dec 2021 18:15:28 -0300	[thread overview]
Message-ID: <20211223211528.3560711-4-farosas@linux.ibm.com> (raw)
In-Reply-To: <20211223211528.3560711-1-farosas@linux.ibm.com>

We check against 'bytes' but print 'run->mmio.len' which at that point
has an old value.

e.g. 16-byte load:

before:
__kvmppc_handle_load: bad MMIO length: 8

now:
__kvmppc_handle_load: bad MMIO length: 16

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
---
 arch/powerpc/kvm/powerpc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 793d42bd6c8f..7823207eb8f1 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -1246,7 +1246,7 @@ static int __kvmppc_handle_load(struct kvm_vcpu *vcpu,
 
 	if (bytes > sizeof(run->mmio.data)) {
 		printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
-		       run->mmio.len);
+		       bytes);
 	}
 
 	run->mmio.phys_addr = vcpu->arch.paddr_accessed;
@@ -1335,7 +1335,7 @@ int kvmppc_handle_store(struct kvm_vcpu *vcpu,
 
 	if (bytes > sizeof(run->mmio.data)) {
 		printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
-		       run->mmio.len);
+		       bytes);
 	}
 
 	run->mmio.phys_addr = vcpu->arch.paddr_accessed;
-- 
2.33.1


  parent reply	other threads:[~2021-12-23 21:18 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-23 21:15 [PATCH 0/3] KVM: PPC: Minor fixes Fabiano Rosas
2021-12-23 21:15 ` [PATCH 1/3] KVM: PPC: Book3S HV: Stop returning internal values to userspace Fabiano Rosas
2021-12-25 10:11   ` Nicholas Piggin
2021-12-23 21:15 ` [PATCH 2/3] KVM: PPC: Fix vmx/vsx mixup in mmio emulation Fabiano Rosas
2021-12-25 10:12   ` Nicholas Piggin
2021-12-27 17:28     ` Fabiano Rosas
2022-01-04  9:01       ` Alexey Kardashevskiy
2021-12-23 21:15 ` Fabiano Rosas [this message]
2021-12-25 10:16   ` [PATCH 3/3] KVM: PPC: Fix mmio length message Nicholas Piggin
2021-12-30 18:24     ` Fabiano Rosas

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