From: Christoffer Dall <c.dall@virtualopensystems.com>
To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Subject: [PATCH v10 01/14] ARM: add mem_type prot_pte accessor
Date: Thu, 16 Aug 2012 11:28:05 -0400 [thread overview]
Message-ID: <20120816152805.21484.59988.stgit@ubuntu> (raw)
In-Reply-To: <20120816152637.21484.65421.stgit@ubuntu>
From: Marc Zyngier <marc.zyngier@arm.com>
The KVM hypervisor mmu code 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 4c2d045..76bf4f5 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:[~2012-08-16 15:28 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-16 15:27 [PATCH v10 00/14] KVM/ARM Implementation Christoffer Dall
2012-08-16 15:28 ` Christoffer Dall [this message]
2012-08-16 15:28 ` [PATCH v10 02/14] ARM: Add config option ARM_VIRT_EXT Christoffer Dall
2012-08-16 15:28 ` [PATCH v10 03/14] ARM: Section based HYP idmap Christoffer Dall
2012-08-16 15:28 ` [PATCH v10 04/14] ARM: Expose PMNC bitfields for KVM use Christoffer Dall
2012-08-16 15:28 ` [PATCH v10 05/14] KVM: ARM: Initial skeleton to compile KVM support Christoffer Dall
2012-08-16 15:29 ` [PATCH v10 06/14] KVM: ARM: Hypervisor inititalization Christoffer Dall
2012-08-23 15:08 ` [kvmarm] " Lei Wen
2012-08-23 15:27 ` Christoffer Dall
2012-08-24 8:04 ` Lei Wen
2012-08-24 13:38 ` Marc Zyngier
2012-08-24 14:34 ` Lei Wen
2012-08-16 15:29 ` [PATCH v10 07/14] KVM: ARM: Memory virtualization setup Christoffer Dall
2012-08-16 18:25 ` [kvmarm] " Alexander Graf
2012-08-19 4:34 ` Christoffer Dall
2012-08-19 9:38 ` Peter Maydell
2012-08-19 13:00 ` Avi Kivity
2012-08-19 20:00 ` Christoffer Dall
2012-08-23 8:12 ` Min-gyu Kim
2012-08-23 14:46 ` Christoffer Dall
2012-08-16 15:29 ` [PATCH v10 08/14] KVM: ARM: Inject IRQs and FIQs from userspace Christoffer Dall
2012-08-21 8:20 ` Jan Kiszka
2012-08-21 14:13 ` Christoffer Dall
2012-08-16 15:29 ` [PATCH v10 09/14] KVM: ARM: World-switch implementation Christoffer Dall
2012-08-16 15:29 ` [PATCH v10 10/14] KVM: ARM: Emulation framework and CP15 emulation Christoffer Dall
2012-08-16 15:30 ` [PATCH v10 11/14] KVM: ARM: User space API for getting/setting co-proc registers Christoffer Dall
2012-08-16 15:30 ` [PATCH v10 12/14] KVM: ARM: Handle guest faults in KVM Christoffer Dall
2012-08-16 15:30 ` [PATCH v10 13/14] KVM: ARM: Handle I/O aborts Christoffer Dall
2012-08-16 15:30 ` [PATCH v10 14/14] KVM: ARM: Guest wait-for-interrupts (WFI) support Christoffer Dall
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