diff options
| author | Nico Huber <nico.h@gmx.de> | 2020-07-18 14:23:41 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-08-24 09:12:47 +0000 |
| commit | 14adb7eaa9f31e9db346f7b9de61e3a63905b03e (patch) | |
| tree | 720df63e952e5d5e5c71f035e30b08aacb6faf4d /payloads/libpayload/libc/coreboot.c | |
| parent | 2f6d5551b015d009a94c61b6741bc33a0e01b410 (diff) | |
libpayload: Cache physical cbmem console address
Same as with other consoles and drivers that cache an address
outside the payload (e.g. video/corebootfb), we should store the
physical address, so we can derive the virtual address on demand.
This makes it save to use the address across relocations.
As a first step in migrating `libsysinfo` to `uintptr_t`, we
also switch to the physical address there.
Fixes the default build of FILO, tested with Qemu/i440FX and Qemu/Q35.
Change-Id: I4b8434af69e0526f78523ae61981a15abb1295b0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37478
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'payloads/libpayload/libc/coreboot.c')
| -rw-r--r-- | payloads/libpayload/libc/coreboot.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index c6fb57fde9..25812e5a95 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -47,6 +47,12 @@ void *get_cbmem_ptr(unsigned char *ptr) return phys_to_virt(cbmem->cbmem_tab); } +uintptr_t get_cbmem_addr(const void *const cbmem_tab_entry) +{ + const struct cb_cbmem_tab *const cbmem = cbmem_tab_entry; + return cbmem->cbmem_tab; +} + static void cb_parse_memory(void *ptr, struct sysinfo_t *info) { struct cb_memory *mem = ptr; @@ -135,7 +141,7 @@ static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) { - info->cbmem_cons = get_cbmem_ptr(ptr); + info->cbmem_cons = get_cbmem_addr(ptr); } static void cb_parse_acpi_gnvs(unsigned char *ptr, struct sysinfo_t *info) |