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| author | Edgar E. Iglesias <edgar.iglesias@amd.com> | 2024-07-02 00:44:20 +0200 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@amd.com> | 2024-07-12 00:17:36 +0200 |
| commit | 596ccccdbfa124adb42be8c2faf0c74f4849c7a6 (patch) | |
| tree | d182e5b664108f8aab4c0251e011be9f7d34501d | |
| parent | d01a6fffa9e5e605cde216733948f97beb01bdb1 (diff) | |
| download | qemu-596ccccdbfa124adb42be8c2faf0c74f4849c7a6.zip qemu-596ccccdbfa124adb42be8c2faf0c74f4849c7a6.tar.gz qemu-596ccccdbfa124adb42be8c2faf0c74f4849c7a6.tar.bz2 | |
physmem: Bail out qemu_ram_block_from_host() for invalid ram addrs
Bail out in qemu_ram_block_from_host() when
xen_ram_addr_from_mapcache() does not find an existing
mapping.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
| -rw-r--r-- | system/physmem.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/system/physmem.c b/system/physmem.c index 14aa025..2154432 100644 --- a/system/physmem.c +++ b/system/physmem.c @@ -2277,6 +2277,10 @@ RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset, ram_addr_t ram_addr; RCU_READ_LOCK_GUARD(); ram_addr = xen_ram_addr_from_mapcache(ptr); + if (ram_addr == RAM_ADDR_INVALID) { + return NULL; + } + block = qemu_get_ram_block(ram_addr); if (block) { *offset = ram_addr - block->offset; |