[PULL kvm-unit-tests 03/10] arm/arm64: Move setup_vm into setup

From: Andrew Jones <drjones@redhat.com>
To: kvm@vger.kernel.org
Cc: pbonzini@redhat.com, Nikos Nikoleris <nikos.nikoleris@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>
Subject: [PULL kvm-unit-tests 03/10] arm/arm64: Move setup_vm into setup
Date: Mon, 17 May 2021 16:38:53 +0200	[thread overview]
Message-ID: <20210517143900.747013-4-drjones@redhat.com> (raw)
In-Reply-To: <20210517143900.747013-1-drjones@redhat.com>

Consolidate our setup calls to reduce the amount we need to do from
init::start. Also remove a couple of pointless comments from setup().

Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Tested-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
---
 arm/cstart.S    | 6 ------
 arm/cstart64.S  | 5 -----
 lib/arm/setup.c | 7 +++++--
 3 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/arm/cstart.S b/arm/cstart.S
index b2c0ba061cd5..bf3c78157e6a 100644
--- a/arm/cstart.S
+++ b/arm/cstart.S
@@ -81,12 +81,7 @@ start:
 	/* complete setup */
 	pop	{r0-r1}
 	bl	setup
-	bl	get_mmu_off
-	cmp	r0, #0
-	bne	1f
-	bl	setup_vm
 
-1:
 	/* run the test */
 	ldr	r0, =__argc
 	ldr	r0, [r0]
@@ -108,7 +103,6 @@ enable_vfp:
 	vmsr	fpexc, r0
 	mov	pc, lr
 
-.global get_mmu_off
 get_mmu_off:
 	ldr	r0, =auxinfo
 	ldr	r0, [r0, #4]
diff --git a/arm/cstart64.S b/arm/cstart64.S
index 7963e1fea979..27251fe8b5cd 100644
--- a/arm/cstart64.S
+++ b/arm/cstart64.S
@@ -93,11 +93,7 @@ start:
 
 	/* complete setup */
 	bl	setup				// x0 is the addr of the dtb
-	bl	get_mmu_off
-	cbnz	x0, 1f
-	bl	setup_vm
 
-1:
 	/* run the test */
 	adrp	x0, __argc
 	ldr	w0, [x0, :lo12:__argc]
@@ -111,7 +107,6 @@ start:
 
 .text
 
-.globl get_mmu_off
 get_mmu_off:
 	adrp	x0, auxinfo
 	ldr	x0, [x0, :lo12:auxinfo + 8]
diff --git a/lib/arm/setup.c b/lib/arm/setup.c
index 751ba980000a..9c16f6004e9f 100644
--- a/lib/arm/setup.c
+++ b/lib/arm/setup.c
@@ -16,6 +16,8 @@
 #include <alloc.h>
 #include <alloc_phys.h>
 #include <alloc_page.h>
+#include <vmalloc.h>
+#include <auxinfo.h>
 #include <argv.h>
 #include <asm/thread_info.h>
 #include <asm/setup.h>
@@ -233,7 +235,6 @@ void setup(const void *fdt)
 		freemem += initrd_size;
 	}
 
-	/* call init functions */
 	mem_init(PAGE_ALIGN((unsigned long)freemem));
 	cpu_init();
 
@@ -243,7 +244,6 @@ void setup(const void *fdt)
 	/* mem_init must be called before io_init */
 	io_init();
 
-	/* finish setup */
 	timer_save_state();
 
 	ret = dt_get_bootargs(&bootargs);
@@ -256,4 +256,7 @@ void setup(const void *fdt)
 		memcpy(env, initrd, initrd_size);
 		setup_env(env, initrd_size);
 	}
+
+	if (!(auxinfo.flags & AUXINFO_MMU_OFF))
+		setup_vm();
 }
-- 
2.30.2

