From: James Morse <james.morse@xxxxxxx> The hyp-stub could make use of the do_el2_call(), move it to a header file. Signed-off-by: James Morse <james.morse at arm.com> --- arch/arm64/include/asm/virt.h | 18 +++++++++++++++++- arch/arm64/kvm/hyp/hyp-entry.S | 17 +---------------- 2 files changed, 18 insertions(+), 17 deletions(-) diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h index 9f22dd6..b8fddde 100644 --- a/arch/arm64/include/asm/virt.h +++ b/arch/arm64/include/asm/virt.h @@ -21,7 +21,23 @@ #define BOOT_CPU_MODE_EL1 (0xe11) #define BOOT_CPU_MODE_EL2 (0xe12) -#ifndef __ASSEMBLY__ +#ifdef __ASSEMBLY__ +.macro do_el2_call + /* + * Shuffle the parameters before calling the function + * pointed to in x0. Assumes parameters in x[1,2,3]. + */ + sub sp, sp, #16 + str lr, [sp] + mov lr, x0 + mov x0, x1 + mov x1, x2 + mov x2, x3 + blr lr + ldr lr, [sp] + add sp, sp, #16 +.endm +#else #include <asm/ptrace.h> diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index 3488894..358f27a 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -23,6 +23,7 @@ #include <asm/kvm_arm.h> #include <asm/kvm_asm.h> #include <asm/kvm_mmu.h> +#include <asm/virt.h> .text .pushsection .hyp.text, "ax" @@ -37,22 +38,6 @@ ldp x0, x1, [sp], #16 .endm -.macro do_el2_call - /* - * Shuffle the parameters before calling the function - * pointed to in x0. Assumes parameters in x[1,2,3]. - */ - sub sp, sp, #16 - str lr, [sp] - mov lr, x0 - mov x0, x1 - mov x1, x2 - mov x2, x3 - blr lr - ldr lr, [sp] - add sp, sp, #16 -.endm - ENTRY(__vhe_hyp_call) do_el2_call /* -- 2.5.0
