[PATCH v4 15/29] efi: arm: Avoid allocating page tables when running under EFI

[Caleb Connolly]

On 2/15/25 04:22, Simon Glass wrote:
> The previous bootloader has already set up the page tables, so don't try
> to do it again.
> 
> This fixes a crash in QEMU when booting from EDK2
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

Reviewed-by: Caleb Connolly <caleb.connolly at linaro.org>
> ---
> 
> (no changes since v1)
> 
>   arch/arm/lib/cache.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/arch/arm/lib/cache.c b/arch/arm/lib/cache.c
> index 516754caeaf..bdd0f202bf9 100644
> --- a/arch/arm/lib/cache.c
> +++ b/arch/arm/lib/cache.c
> @@ -6,6 +6,7 @@
>   
>   #include <config.h>
>   #include <cpu_func.h>
> +#include <init.h>
>   #include <log.h>
>   #include <malloc.h>
>   #include <asm/cache.h>
> @@ -138,6 +139,8 @@ int arch_reserve_mmu(void)
>   
>   __weak int arm_reserve_mmu(void)
>   {
> +	if (!ll_boot_init())
> +		return 0;
>   #if !(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF))
>   	/* reserve TLB table */
>   	gd->arch.tlb_size = PGTABLE_SIZE;

-- 
Caleb (they/them)