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From: Ian Campbell <ian.campbell@citrix.com>
To: xen-devel@lists.xen.org
Cc: julien.grall@citrix.com, tim@xen.org,
	Ian Campbell <ian.campbell@citrix.com>,
	stefano.stabellini@eu.citrix.com
Subject: [PATCH 10/17] xen: arm: some cleanups to hypervisor entry code.
Date: Mon, 29 Jul 2013 13:20:59 +0100	[thread overview]
Message-ID: <1375100466-7564-10-git-send-email-ian.campbell@citrix.com> (raw)
In-Reply-To: <1375100431.14896.95.camel@kazak.uk.xensource.com>

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@citrix.com>
---
v4: split out from "xen: arm: handle traps from 64-bit guests"
    Do not export return_to_guest either.
---
 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
-- 
1.7.2.5

  parent reply	other threads:[~2013-07-29 12:20 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-29 12:20 [PATCH v4 00/17] xen: arm: 64-bit dom0 kernel support Ian Campbell
2013-07-29 12:20 ` [PATCH 01/17] xen: arm: tweak arm64 stack frame layout Ian Campbell
2013-07-29 12:20 ` [PATCH 02/17] xen: arm: rename 32-bit specific zImage field offset constants Ian Campbell
2013-07-29 12:20 ` [PATCH 03/17] xen: arm: support for loading 64-bit zImage dom0 Ian Campbell
2013-07-29 12:20 ` [PATCH 04/17] xen: arm: support building a 64-bit dom0 domain Ian Campbell
2013-07-29 18:29   ` Julien Grall
2013-07-30  9:34     ` Ian Campbell
2013-07-30  9:43       ` Julien Grall
2013-08-02 16:07         ` Ian Campbell
2013-07-29 12:20 ` [PATCH 05/17] xen: arm: precalculate VTTBR_EL2 for a domain when setting up its p2m Ian Campbell
2013-07-29 12:20 ` [PATCH 06/17] xen: arm: improve register dump output for 64-bit guest (and more generally too) Ian Campbell
2013-07-29 12:53   ` Tim Deegan
2013-07-29 12:20 ` [PATCH 07/17] xen: arm: support dumping 64-bit guest stack Ian Campbell
2013-07-29 12:20 ` [PATCH 08/17] xen: arm: show less words in a line of a stack trace in 64-bit builds Ian Campbell
2013-07-29 12:20 ` [PATCH 09/17] xen: arm: Set EL1 register width in HCR_EL2 during context switch Ian Campbell
2013-07-29 12:20 ` Ian Campbell [this message]
2013-07-29 12:56   ` [PATCH 10/17] xen: arm: some cleanups to hypervisor entry code Tim Deegan
2013-07-29 12:21 ` [PATCH 11/17] xen: arm: refactor 64-bit return from trap path Ian Campbell
2013-07-29 13:01   ` Tim Deegan
2013-07-29 12:21 ` [PATCH 12/17] xen: arm: handle traps from 64-bit guests Ian Campbell
2013-07-29 13:49   ` Tim Deegan
2013-07-29 12:21 ` [PATCH 13/17] xen: arm: handle hypercalls " Ian Campbell
2013-07-29 12:21 ` [PATCH 14/17] xen: arm: handle 64-bit system register access traps Ian Campbell
2013-07-29 12:21 ` [PATCH 15/17] xen: arm: align some comments Ian Campbell
2013-07-29 12:21 ` [PATCH 16/17] xen: arm: document HCR bits Ian Campbell
2013-07-29 12:21 ` [PATCH 17/17] xen: arm: Handle SMC from 64-bit guests Ian Campbell
2013-07-29 13:53   ` Tim Deegan
2013-07-29 12:21 ` [PATCH v4 00/17] xen: arm: 64-bit dom0 kernel support Ian Campbell
2013-07-29 15:58 ` Ian Campbell

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