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| author | Ani Sinha <anisinha@redhat.com> | 2024-07-19 19:19:37 +0530 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2024-08-23 12:07:23 +0300 |
| commit | 80e3541282af347538a37ee0673bcc04c622ad1c (patch) | |
| tree | dca6b93ef39fa9124f30b76bd0fc4a55ce45d7c7 /hw/i386/x86-common.c | |
| parent | 407f9a4b121eb65166375c410e14d7b704bc1106 (diff) | |
| download | focaccia-qemu-80e3541282af347538a37ee0673bcc04c622ad1c.tar.gz focaccia-qemu-80e3541282af347538a37ee0673bcc04c622ad1c.zip | |
hw/x86: add a couple of comments explaining how the kernel image is parsed
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> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'hw/i386/x86-common.c')
| -rw-r--r-- | hw/i386/x86-common.c | 7 |
1 files 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 { /* |