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From: James Hogan <james.hogan@imgtec.com>
To: <linux-mips@linux-mips.org>
Cc: "James Hogan" <james.hogan@imgtec.com>,
	linux-mm@kvack.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Ralf Baechle" <ralf@linux-mips.org>,
	kvm@vger.kernel.org
Subject: [PATCH 1/30] mm: Export init_mm for MIPS KVM use of pgd_alloc()
Date: Fri, 6 Jan 2017 01:32:33 +0000	[thread overview]
Message-ID: <a8df39719fb0570cb38e3fbb5c128fe2618e92d6.1483665879.git-series.james.hogan@imgtec.com> (raw)
In-Reply-To: <cover.d6d201de414322ed2c1372e164254e6055ef7db9.1483665879.git-series.james.hogan@imgtec.com>

Export the init_mm symbol to GPL modules so that MIPS KVM can use
pgd_alloc() to create GVA page directory tables for trap & emulate mode,
which runs guest code in user mode. On MIPS pgd_alloc() is implemented
inline and refers to init_mm in order to copy kernel address space
mappings into the new page directory.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mm@kvack.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
---
 mm/init-mm.c | 2 ++
 1 file changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/init-mm.c b/mm/init-mm.c
index 975e49f00f34..94aae08b41e1 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -1,3 +1,4 @@
+#include <linux/export.h>
 #include <linux/mm_types.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
@@ -25,3 +26,4 @@ struct mm_struct init_mm = {
 	.user_ns	= &init_user_ns,
 	INIT_MM_CONTEXT(init_mm)
 };
+EXPORT_SYMBOL_GPL(init_mm);
-- 
git-series 0.8.10

WARNING: multiple messages have this Message-ID (diff)
From: James Hogan <james.hogan@imgtec.com>
To: linux-mips@linux-mips.org
Cc: "James Hogan" <james.hogan@imgtec.com>,
	linux-mm@kvack.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Ralf Baechle" <ralf@linux-mips.org>,
	kvm@vger.kernel.org
Subject: [PATCH 1/30] mm: Export init_mm for MIPS KVM use of pgd_alloc()
Date: Fri, 6 Jan 2017 01:32:33 +0000	[thread overview]
Message-ID: <a8df39719fb0570cb38e3fbb5c128fe2618e92d6.1483665879.git-series.james.hogan@imgtec.com> (raw)
Message-ID: <20170106013233.-DL5yCAPV8SrnqghOefHsZ7nGt1mS6gDF9MRJDC_lnE@z> (raw)
In-Reply-To: <cover.d6d201de414322ed2c1372e164254e6055ef7db9.1483665879.git-series.james.hogan@imgtec.com>

Export the init_mm symbol to GPL modules so that MIPS KVM can use
pgd_alloc() to create GVA page directory tables for trap & emulate mode,
which runs guest code in user mode. On MIPS pgd_alloc() is implemented
inline and refers to init_mm in order to copy kernel address space
mappings into the new page directory.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mm@kvack.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
---
 mm/init-mm.c | 2 ++
 1 file changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/init-mm.c b/mm/init-mm.c
index 975e49f00f34..94aae08b41e1 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -1,3 +1,4 @@
+#include <linux/export.h>
 #include <linux/mm_types.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
@@ -25,3 +26,4 @@ struct mm_struct init_mm = {
 	.user_ns	= &init_user_ns,
 	INIT_MM_CONTEXT(init_mm)
 };
+EXPORT_SYMBOL_GPL(init_mm);
-- 
git-series 0.8.10

  parent reply	other threads:[~2017-01-06  1:34 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-06  1:32 [PATCH 0/30] KVM: MIPS: Implement GVA page tables James Hogan
2017-01-06  1:32 ` James Hogan
2017-01-06  1:32 ` James Hogan [this message]
2017-01-06  1:32   ` [PATCH 1/30] mm: Export init_mm for MIPS KVM use of pgd_alloc() James Hogan
2017-01-17 16:23   ` Ralf Baechle
2017-01-17 16:27   ` Ralf Baechle
2017-01-06  1:32 ` [PATCH 2/30] MIPS: Export pgd/pmd symbols for KVM James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-17 16:24   ` Ralf Baechle
2017-01-06  1:32 ` [PATCH 3/30] MIPS: uasm: Add include guards in asm/uasm.h James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-17 16:25   ` Ralf Baechle
2017-01-06  1:32 ` [PATCH 4/30] MIPS: Export some tlbex internals for KVM to use James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-17 16:26   ` Ralf Baechle
2017-01-06  1:32 ` [PATCH 5/30] KVM: MIPS: Drop partial KVM_NMI implementation James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 6/30] KVM: MIPS/MMU: Simplify ASID restoration James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 7/30] KVM: MIPS: Convert get/set_regs -> vcpu_load/put James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 8/30] KVM: MIPS/MMU: Move preempt/ASID handling to implementation James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 9/30] KVM: MIPS: Remove duplicated ASIDs from vcpu James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 10/30] KVM: MIPS: Add vcpu_run() & vcpu_reenter() callbacks James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 11/30] KVM: MIPS/T&E: Restore host asid on return to host James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 12/30] KVM: MIPS/T&E: active_mm = init_mm in guest context James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 13/30] KVM: MIPS: Wire up vcpu uninit James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 14/30] KVM: MIPS/T&E: Allocate GVA -> HPA page tables James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 15/30] KVM: MIPS/T&E: Activate GVA page tables in guest context James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 16/30] KVM: MIPS: Support NetLogic KScratch registers James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 17/30] KVM: MIPS: Add fast path TLB refill handler James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 18/30] KVM: MIPS/TLB: Fix off-by-one in TLB invalidate James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 19/30] KVM: MIPS/TLB: Generalise host TLB invalidate to kernel ASID James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 20/30] KVM: MIPS/MMU: Invalidate GVA PTs on ASID changes James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 21/30] KVM: MIPS/MMU: Invalidate stale GVA PTEs on TLBW James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 22/30] KVM: MIPS/MMU: Convert KSeg0 faults to page tables James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 23/30] KVM: MIPS/MMU: Convert TLB mapped " James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 24/30] KVM: MIPS/MMU: Convert commpage fault handling " James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 25/30] KVM: MIPS: Drop vm_init() callback James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 26/30] KVM: MIPS: Use uaccess to read/modify guest instructions James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:32 ` [PATCH 27/30] KVM: MIPS/Emulate: Fix CACHE emulation for EVA hosts James Hogan
2017-01-06  1:32   ` James Hogan
2017-01-06  1:33 ` [PATCH 28/30] KVM: MIPS/TLB: Drop kvm_local_flush_tlb_all() James Hogan
2017-01-06  1:33   ` James Hogan
2017-01-06  1:33 ` [PATCH 29/30] KVM: MIPS/Emulate: Drop redundant TLB flushes on exceptions James Hogan
2017-01-06  1:33   ` James Hogan
2017-01-06  1:33 ` [PATCH 30/30] KVM: MIPS/MMU: Drop kvm_get_new_mmu_context() James Hogan
2017-01-06  1:33   ` James Hogan

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