* [PATCH] hw/x86: add a couple of comments explaining how the kernel image is parsed
@ 2024-07-19 13:49 Ani Sinha
2024-07-21 14:47 ` Zhao Liu
0 siblings, 1 reply; 2+ messages in thread
From: Ani Sinha @ 2024-07-19 13:49 UTC (permalink / raw)
To: Michael S. Tsirkin, Marcel Apfelbaum, Paolo Bonzini,
Richard Henderson, Eduardo Habkost
Cc: Ani Sinha, qemu-trivial, qemu-devel
Cosmetic: add comments in x86_load_linux() pointing to the kernel documentation
so that users can better understand the code.
CC: qemu-trivial@nongnu.org
Signed-off-by: Ani Sinha <anisinha@redhat.com>
---
hw/i386/x86-common.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/hw/i386/x86-common.c b/hw/i386/x86-common.c
index c0c66a0eb5..992ea1f25e 100644
--- a/hw/i386/x86-common.c
+++ b/hw/i386/x86-common.c
@@ -665,8 +665,11 @@ void x86_load_linux(X86MachineState *x86ms,
exit(1);
}
- /* kernel protocol version */
- if (ldl_p(header + 0x202) == 0x53726448) {
+ /*
+ * kernel protocol version.
+ * Please see https://www.kernel.org/doc/Documentation/x86/boot.txt
+ */
+ if (ldl_p(header + 0x202) == 0x53726448) /* Magic signature "HdrS" */ {
protocol = lduw_p(header + 0x206);
} else {
/*
--
2.45.2
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] hw/x86: add a couple of comments explaining how the kernel image is parsed
2024-07-19 13:49 [PATCH] hw/x86: add a couple of comments explaining how the kernel image is parsed Ani Sinha
@ 2024-07-21 14:47 ` Zhao Liu
0 siblings, 0 replies; 2+ messages in thread
From: Zhao Liu @ 2024-07-21 14:47 UTC (permalink / raw)
To: Ani Sinha
Cc: Michael S. Tsirkin, Marcel Apfelbaum, Paolo Bonzini,
Richard Henderson, Eduardo Habkost, qemu-trivial, qemu-devel
On Fri, Jul 19, 2024 at 07:19:37PM +0530, Ani Sinha wrote:
> Date: Fri, 19 Jul 2024 19:19:37 +0530
> From: Ani Sinha <anisinha@redhat.com>
> Subject: [PATCH] hw/x86: add a couple of comments explaining how the kernel
> image is parsed
> X-Mailer: git-send-email 2.42.0
>
> Cosmetic: add comments in x86_load_linux() pointing to the kernel documentation
> so that users can better understand the code.
>
> CC: qemu-trivial@nongnu.org
> Signed-off-by: Ani Sinha <anisinha@redhat.com>
> ---
> hw/i386/x86-common.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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