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Pull request for UEFI sub-system for efi-2020-10-rc5

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The following bugs are fixed:
 
 * unaligned access in br_i32_decode()
 * missing restore of global data pointer in UEFI selftest
 * missing restore of global data pointer on RISC-V in UEfI subsystem
 * efi_var_mem_notify_exit_boot_services() should not be __efi_runtime
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Merge tag 'efi-2020-10-rc5' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

Pull request for UEFI sub-system for efi-2020-10-rc5

The following bugs are fixed:

* unaligned access in br_i32_decode()
* missing restore of global data pointer in UEFI selftest
* missing restore of global data pointer on RISC-V in UEfI subsystem
* efi_var_mem_notify_exit_boot_services() should not be __efi_runtime
This commit is contained in:
Tom Rini 2020-09-16 08:08:06 -04:00
commit b01ba776c9
5 changed files with 26 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/riscv/include/asm/global_data.h
View File

@ -39,4 +39,13 @@ struct arch_global_data {
#define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm ("gp")
static inline void set_gd(volatile gd_t *gd_ptr)
{
#ifdef CONFIG_64BIT
asm volatile("ld gp, %0\n" : : "m"(gd_ptr));
#else
asm volatile("lw gp, %0\n" : : "m"(gd_ptr));
#endif
}
#endif /* __ASM_GBL_DATA_H */

18
lib/efi_loader/efi_boottime.c
View File

@ -42,9 +42,9 @@ LIST_HEAD(efi_register_notify_events);
/* Handle of the currently executing image */
static efi_handle_t current_image;
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
/*
* The "gd" pointer lives in a register on ARM and AArch64 that we declare
* The "gd" pointer lives in a register on ARM and RISC-V that we declare
* fixed when compiling U-Boot. However, the payload does not know about that
* restriction so we need to manually swap its and our view of that register on
* EFI callback entry/exit.
@ -86,7 +86,7 @@ static efi_status_t EFIAPI efi_disconnect_controller(
int __efi_entry_check(void)
{
int ret = entry_count++ == 0;
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
assert(efi_gd);
app_gd = gd;
set_gd(efi_gd);
@ -98,7 +98,7 @@ int __efi_entry_check(void)
int __efi_exit_check(void)
{
int ret = --entry_count == 0;
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
set_gd(app_gd);
#endif
return ret;
@ -107,7 +107,7 @@ int __efi_exit_check(void)
/**
* efi_save_gd() - save global data register
*
* On the ARM architecture gd is mapped to a fixed register (r9 or x18).
* On the ARM and RISC-V architectures gd is mapped to a fixed register.
* As this register may be overwritten by an EFI payload we save it here
* and restore it on every callback entered.
*
@ -115,7 +115,7 @@ int __efi_exit_check(void)
*/
void efi_save_gd(void)
{
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
efi_gd = gd;
#endif
}
@ -123,13 +123,13 @@ void efi_save_gd(void)
/**
* efi_restore_gd() - restore global data register
*
* On the ARM architecture gd is mapped to a fixed register (r9 or x18).
* On the ARM and RISC-V architectures gd is mapped to a fixed register.
* Restore it after returning from the UEFI world to the value saved via
* efi_save_gd().
*/
void efi_restore_gd(void)
{
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
/* Only restore if we're already in EFI context */
if (!efi_gd)
return;
@ -2920,7 +2920,7 @@ efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
* us to the current line. This implies that the second half
* of the EFI_CALL macro has not been executed.
*/
#ifdef CONFIG_ARM
#if defined(CONFIG_ARM) || defined(CONFIG_RISCV)
/*
* efi_exit() called efi_restore_gd(). We have to undo this
* otherwise __efi_entry_check() will put the wrong value into

2
lib/efi_loader/efi_var_mem.c
View File

@ -211,7 +211,7 @@ static void efi_var_mem_bs_del(void)
* @event: callback event
* @context: callback context
*/
static void EFIAPI __efi_runtime
static void EFIAPI
efi_var_mem_notify_exit_boot_services(struct efi_event *event, void *context)
{
EFI_ENTRY("%p, %p", event, context);

6
lib/efi_selftest/efi_selftest.c
View File

@ -311,11 +311,13 @@ efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
efi_st_printf("Preparing for reset. Press any key...\n");
efi_st_get_key();
if (IS_ENABLED(CONFIG_EFI_HAVE_RUNTIME_RESET))
if (IS_ENABLED(CONFIG_EFI_HAVE_RUNTIME_RESET)) {
runtime->reset_system(EFI_RESET_WARM, EFI_NOT_READY,
sizeof(reset_message), reset_message);
else
} else {
efi_restore_gd();
do_reset(NULL, 0, 0, NULL);
}
efi_st_printf("\n");
efi_st_error("Reset failed\n");

6
lib/rsa/rsa-keyprop.c
View File

@ -12,9 +12,9 @@
#include <common.h>
#include <image.h>
#include <malloc.h>
#include <asm/byteorder.h>
#include <crypto/internal/rsa.h>
#include <u-boot/rsa-mod-exp.h>
#include <asm/unaligned.h>
/**
* br_dec16be() - Convert 16-bit big-endian integer to native
@ -23,7 +23,7 @@
*/
static unsigned br_dec16be(const void *src)
{
return be16_to_cpup(src);
return get_unaligned_be16(src);
}
/**
@ -33,7 +33,7 @@ static unsigned br_dec16be(const void *src)
*/
static uint32_t br_dec32be(const void *src)
{
return be32_to_cpup(src);
return get_unaligned_be32(src);
}
/**