diff options
| author | imp <imp@FreeBSD.org> | 2015-12-19 19:01:43 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2015-12-19 19:01:43 +0000 |
| commit | 3e2743eaf621b6c146aea36c7052c7acb626213f (patch) | |
| tree | b034210538061d2ac58b24709d28f1f7bc420ee2 /sys/amd64 | |
| parent | 02742ba285e8e8670e8855fdbe66e0f82d9b4bb6 (diff) | |
| download | FreeBSD-src-3e2743eaf621b6c146aea36c7052c7acb626213f.zip FreeBSD-src-3e2743eaf621b6c146aea36c7052c7acb626213f.tar.gz | |
Save the physical address passed into the kernel of the UEFI system
table.
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/machdep.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index db1b77a..6bf251f 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -188,6 +188,12 @@ extern char kernphys[]; struct msgbuf *msgbufp; +/* + * Physical address of the EFI System Table. Stashed from the metadata hints + * passed into the kernel and used by the EFI code to call runtime services. + */ +vm_paddr_t efi_systbl; + /* Intel ICH registers */ #define ICH_PMBASE 0x400 #define ICH_SMI_EN ICH_PMBASE + 0x30 @@ -1495,6 +1501,7 @@ native_parse_preload_data(u_int64_t modulep) ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t); db_fetch_ksymtab(ksym_start, ksym_end); #endif + efi_systbl = MD_FETCH(kmdp, MODINFOMD_FW_HANDLE, vm_paddr_t); return (kmdp); } @@ -1615,6 +1622,8 @@ hammer_time(u_int64_t modulep, u_int64_t physfree) /* * Use vt(4) by default for UEFI boot (during the sc(4)/vt(4) * transition). + * Once bootblocks have updated, we can test directly for + * efi_systbl != NULL here... */ if (preload_search_info(kmdp, MODINFO_METADATA | MODINFOMD_EFI_MAP) != NULL) |
