From: Christoffer Dall <c.dall@virtualopensystems.com>
To: android-virt@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: tech@virtualopensystems.com
Subject: [PATCH v9 01/16] ARM: add mem_type prot_pte accessor
Date: Tue, 03 Jul 2012 04:59:20 -0400 [thread overview]
Message-ID: <20120703085920.27746.12269.stgit@ubuntu> (raw)
In-Reply-To: <20120703085841.27746.82730.stgit@ubuntu>
From: Marc Zyngier <marc.zyngier@arm.com>
The KVM hypervisor mmu code requires requires access to the
mem_type prot_pte field when setting up page tables pointing
to a device. Unfortunately, the mem_type structure is opaque.
Add an accessor (get_mem_type_prot_pte()) to retrieve the
prot_pte value.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
---
arch/arm/include/asm/mach/map.h | 1 +
arch/arm/mm/mmu.c | 6 ++++++
2 files changed, 7 insertions(+)
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index a6efcdd..3787c9f 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -37,6 +37,7 @@ extern void iotable_init(struct map_desc *, int);
struct mem_type;
extern const struct mem_type *get_mem_type(unsigned int type);
+extern pteval_t get_mem_type_prot_pte(unsigned int type);
/*
* external interface to remap single page with appropriate type
*/
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index e5dad60..f7439e7 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -301,6 +301,12 @@ const struct mem_type *get_mem_type(unsigned int type)
}
EXPORT_SYMBOL(get_mem_type);
+pteval_t get_mem_type_prot_pte(unsigned int type)
+{
+ return get_mem_type(type)->prot_pte;
+}
+EXPORT_SYMBOL(get_mem_type_prot_pte);
+
/*
* Adjust the PMD section entries according to the CPU in use.
*/
next prev parent reply other threads:[~2012-07-03 8:59 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 8:59 [PATCH v9 00/16] KVM/ARM Implementation Christoffer Dall
2012-07-03 8:59 ` Christoffer Dall [this message]
2012-07-20 14:54 ` [PATCH v9 01/16] ARM: add mem_type prot_pte accessor Andreas Färber
2012-07-26 21:26 ` Christoffer Dall
2012-07-03 8:59 ` [PATCH v9 02/16] ARM: Add config option ARM_VIRT_EXT Christoffer Dall
2012-07-03 8:59 ` [PATCH v9 03/16] ARM: Section based HYP idmap Christoffer Dall
2012-07-03 8:59 ` [PATCH v9 04/16] KVM: Move KVM_IRQ_LINE to arch-generic code Christoffer Dall
2012-07-03 19:50 ` Marcelo Tosatti
2012-07-24 12:37 ` Christoffer Dall
2012-07-03 9:00 ` [PATCH v9 05/16] KVM: Guard mmu_notifier specific code with CONFIG_MMU_NOTIFIER Christoffer Dall
2012-07-03 9:00 ` [PATCH v9 06/16] ARM: KVM: Initial skeleton to compile KVM support Christoffer Dall
2012-07-03 9:00 ` [PATCH v9 07/16] ARM: KVM: Support Cortex-A15 VCPUs reset Christoffer Dall
2012-07-03 9:00 ` [PATCH v9 08/16] ARM: KVM: Hypervisor inititalization Christoffer Dall
2012-07-03 9:00 ` [PATCH v9 09/16] ARM: KVM: Module unloading support Christoffer Dall
2012-07-03 9:01 ` [PATCH v9 10/16] ARM: KVM: Memory virtualization setup Christoffer Dall
2012-07-03 9:01 ` [PATCH v9 11/16] ARM: KVM: Inject IRQs and FIQs from userspace Christoffer Dall
2012-08-06 17:20 ` [Android-virt] " Peter Maydell
2012-08-07 13:59 ` Avi Kivity
2012-08-07 14:12 ` Peter Maydell
2012-08-07 14:28 ` Avi Kivity
2012-08-07 14:36 ` Peter Maydell
2012-07-03 9:01 ` [PATCH v9 12/16] ARM: KVM: World-switch implementation Christoffer Dall
2012-07-03 10:07 ` Avi Kivity
2012-07-25 14:16 ` Christoffer Dall
2012-07-03 9:01 ` [PATCH v9 13/16] ARM: KVM: Emulation framework and CP15 emulation Christoffer Dall
2012-07-12 5:35 ` 김민규
2012-07-16 14:09 ` Christoffer Dall
2012-07-17 10:54 ` Min-gyu Kim
2012-07-03 9:01 ` [PATCH v9 14/16] ARM: KVM: Handle guest faults in KVM Christoffer Dall
2012-07-03 9:02 ` [PATCH v9 15/16] ARM: KVM: Handle I/O aborts Christoffer Dall
2012-07-03 9:02 ` [PATCH v9 16/16] ARM: KVM: Guest wait-for-interrupts (WFI) support Christoffer Dall
2012-07-03 13:10 ` Avi Kivity
2012-07-03 13:14 ` [Android-virt] " Peter Maydell
2012-07-03 13:24 ` Avi Kivity
2012-07-03 13:49 ` Peter Maydell
2012-07-03 15:57 ` Avi Kivity
2012-07-26 21:08 ` Christoffer Dall
2012-07-03 13:29 ` [PATCH v9 00/16] KVM/ARM Implementation Avi Kivity
2012-07-03 13:51 ` [Android-virt] " Peter Maydell
2012-07-26 21:15 ` Christoffer Dall
2012-07-26 21:21 ` Peter Maydell
2012-07-26 21:25 ` Christoffer Dall
2012-07-03 19:51 ` Marcelo Tosatti
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