[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] xen: arm: some cleanups to hypervisor entry code.
commit 6487e2603c3ff7e7e81659ca9c453378b6b8a600 Author: Ian Campbell <ian.campbell@xxxxxxxxxx> AuthorDate: Mon Jul 29 13:20:59 2013 +0100 Commit: Ian Campbell <ian.campbell@xxxxxxxxxx> CommitDate: Mon Jul 29 16:54:50 2013 +0100 xen: arm: some cleanups to hypervisor entry code. Tweak the case of some system registers for consistency. There is no need to export return_to_hypervisor or return_to_guest. Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Acked-by: Tim Deegan <tim@xxxxxxx> --- xen/arch/arm/arm32/entry.S | 4 ++-- xen/arch/arm/arm64/entry.S | 16 ++++++++-------- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/xen/arch/arm/arm32/entry.S b/xen/arch/arm/arm32/entry.S index 1c26835..6cdf0aa 100644 --- a/xen/arch/arm/arm32/entry.S +++ b/xen/arch/arm/arm32/entry.S @@ -93,7 +93,7 @@ ENTRY(return_to_new_vcpu) cmp r11, #PSR_MODE_HYP beq return_to_hypervisor /* Fall thru */ -ENTRY(return_to_guest) +return_to_guest: mov r11, sp bic sp, #7 /* Align the stack pointer */ bl leave_hypervisor_tail /* Disables interrupts on return */ @@ -108,7 +108,7 @@ ENTRY(return_to_guest) RESTORE_ONE_BANKED(R8_fiq); RESTORE_ONE_BANKED(R9_fiq); RESTORE_ONE_BANKED(R10_fiq) RESTORE_ONE_BANKED(R11_fiq); RESTORE_ONE_BANKED(R12_fiq); /* Fall thru */ -ENTRY(return_to_hypervisor) +return_to_hypervisor: cpsid i ldr lr, [sp, #UREGS_lr] ldr r11, [sp, #UREGS_pc] diff --git a/xen/arch/arm/arm64/entry.S b/xen/arch/arm/arm64/entry.S index b5af1e2..c0d2bd8 100644 --- a/xen/arch/arm/arm64/entry.S +++ b/xen/arch/arm/arm64/entry.S @@ -26,7 +26,7 @@ lr .req x30 // link register .macro entry_guest, compat add x21, sp, #UREGS_SPSR_el1 - mrs x23, SPSR_EL1 + mrs x23, SPSR_el1 str x23, [x21] .if \compat == 0 /* Aarch64 mode */ @@ -40,16 +40,16 @@ lr .req x30 // link register mrs x23, ELR_el1 stp x22, x23, [x21] - .else /* Aarch32 mode */ + .else /* Aarch32 mode */ add x21, sp, #UREGS_SPSR_fiq - mrs x22, spsr_fiq - mrs x23, spsr_irq + mrs x22, SPSR_fiq + mrs x23, SPSR_irq stp w22, w23, [x21] add x21, sp, #UREGS_SPSR_und - mrs x22, spsr_und - mrs x23, spsr_abt + mrs x22, SPSR_und + mrs x23, SPSR_abt stp w22, w23, [x21] .endif @@ -186,10 +186,10 @@ ENTRY(return_to_new_vcpu) ccmp x21, #PSR_MODE_EL2h, #0x4, ne b.eq return_to_hypervisor /* Yes */ /* Fall thru */ -ENTRY(return_to_guest) +return_to_guest: bl leave_hypervisor_tail /* Disables interrupts on return */ /* Fall thru */ -ENTRY(return_to_hypervisor) +return_to_hypervisor: msr daifset, #2 /* Mask interrupts */ ldp x21, x22, [sp, #UREGS_PC] // load ELR, SPSR -- generated by git-patchbot for /home/xen/git/xen.git#master _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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