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author | Paolo Bonzini <pbonzini@redhat.com> | 2019-07-22 12:55:48 +0200 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-07-22 13:02:00 +0200 |
commit | a56aa64ed030a30377931a13a3da98a8419326ca (patch) | |
tree | 0e8b4044319305e0a1a422441c060e29d80c0f6a /main.c | |
parent | ab6d7ee29d95ecee28190644f8d001b08d480b34 (diff) | |
download | qboot-a56aa64ed030a30377931a13a3da98a8419326ca.zip qboot-a56aa64ed030a30377931a13a3da98a8419326ca.tar.gz qboot-a56aa64ed030a30377931a13a3da98a8419326ca.tar.bz2 |
drop cbfs experiment
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'main.c')
-rw-r--r-- | main.c | 19 |
1 files changed, 4 insertions, 15 deletions
@@ -77,17 +77,6 @@ static void extract_e820(void) e820_seg = ((uintptr_t) e820) >> 4; } -static bool detect_cbfs_and_boot(void) -{ - size_t sz; - void *base = pflash_base(1, &sz); - - if (!base) - return false; - - return boot_from_cbfs(base, sz); -} - int __attribute__ ((section (".text.startup"))) main(void) { #ifdef BENCHMARK_HACK @@ -95,8 +84,9 @@ int __attribute__ ((section (".text.startup"))) main(void) #endif setup_hw(); - // Now go to the F-segment: we need to move away from flash area - // in order to probe CBFS! + // Only the 16-bit trampoline for vmlinuz and the 16-bit interrupt + // handlers need to run from the F-segment, but keep things simple + // and jump there. From this point we can modify global variables. asm("ljmp $0x8, $1f; 1:"); have_mmconfig = setup_mmconfig(); @@ -106,7 +96,6 @@ int __attribute__ ((section (".text.startup"))) main(void) extract_acpi(); extract_e820(); // extract_smbios(); - if (!detect_cbfs_and_boot()) - boot_from_fwcfg(); + boot_from_fwcfg(); panic(); } |