From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
kvm@vger.kernel.org, qemu-arm@nongnu.org,
"Richard Henderson" <rth@twiddle.net>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [PATCH v2 2/7] exec: Propagate cpu_memory_rw_debug() error
Date: Mon, 18 May 2020 17:53:03 +0200 [thread overview]
Message-ID: <20200518155308.15851-3-f4bug@amsat.org> (raw)
In-Reply-To: <20200518155308.15851-1-f4bug@amsat.org>
Do not ignore the MemTxResult error type returned by
the address_space_rw() API.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
include/exec/cpu-all.h | 1 +
exec.c | 12 ++++++++----
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index d14374bdd4..fb4e8a8e29 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -413,6 +413,7 @@ void dump_exec_info(void);
void dump_opcount_info(void);
#endif /* !CONFIG_USER_ONLY */
+/* Returns: 0 on success, -1 on error */
int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
void *ptr, target_ulong len, bool is_write);
diff --git a/exec.c b/exec.c
index 877b51cc5c..ae5a6944ef 100644
--- a/exec.c
+++ b/exec.c
@@ -3769,6 +3769,7 @@ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
while (len > 0) {
int asidx;
MemTxAttrs attrs;
+ MemTxResult res;
page = addr & TARGET_PAGE_MASK;
phys_addr = cpu_get_phys_page_attrs_debug(cpu, page, &attrs);
@@ -3781,11 +3782,14 @@ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
l = len;
phys_addr += (addr & ~TARGET_PAGE_MASK);
if (is_write) {
- address_space_write_rom(cpu->cpu_ases[asidx].as, phys_addr,
- attrs, buf, l);
+ res = address_space_write_rom(cpu->cpu_ases[asidx].as, phys_addr,
+ attrs, buf, l);
} else {
- address_space_read(cpu->cpu_ases[asidx].as, phys_addr, attrs, buf,
- l);
+ res = address_space_read(cpu->cpu_ases[asidx].as, phys_addr,
+ attrs, buf, l);
+ }
+ if (res != MEMTX_OK) {
+ return -1;
}
len -= l;
buf += l;
--
2.21.3
next prev parent reply other threads:[~2020-05-18 15:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-18 15:53 [PATCH v2 0/7] exec/memory: Enforce checking MemTxResult values Philippe Mathieu-Daudé
2020-05-18 15:53 ` [PATCH v2 1/7] exec: Let address_space_read/write_cached() propagate MemTxResult Philippe Mathieu-Daudé
2020-05-18 16:13 ` Peter Maydell
2020-05-18 15:53 ` Philippe Mathieu-Daudé [this message]
2020-05-18 15:53 ` [PATCH v2 3/7] disas: Let disas::read_memory() handler return EIO on error Philippe Mathieu-Daudé
2020-05-18 15:53 ` [PATCH v2 4/7] hw/elf_ops: Do not ignore write failures when loading ELF Philippe Mathieu-Daudé
2020-05-19 7:58 ` Stefano Garzarella
2020-05-18 15:53 ` [PATCH v2 5/7] hw/arm/boot: Abort if set_kernel_args() fails Philippe Mathieu-Daudé
2020-05-18 16:08 ` Peter Maydell
2020-05-18 15:53 ` [RFC PATCH v2 6/7] accel/kvm: Let KVM_EXIT_MMIO return error Philippe Mathieu-Daudé
2020-05-18 16:01 ` Peter Maydell
2020-05-18 16:06 ` Philippe Mathieu-Daudé
2020-05-21 15:39 ` Paolo Bonzini
2020-05-21 15:45 ` Peter Maydell
2020-05-18 15:53 ` [RFC PATCH v2 7/7] hw/core/loader: Assert loading ROM regions succeeds at reset Philippe Mathieu-Daudé
2020-05-18 16:12 ` Peter Maydell
2020-05-18 16:25 ` Philippe Mathieu-Daudé
2020-05-21 15:40 ` [PATCH v2 0/7] exec/memory: Enforce checking MemTxResult values Paolo Bonzini
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