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From: Michael Ellerman <mpe@ellerman.id.au>
To: linuxppc-dev@ozlabs.org
Cc: cai@lca.pw, kvm-ppc@vger.kernel.org
Subject: [PATCH 3/4] powerpc/kvm: Explicitly mark kvm guest code as __init
Date: Wed, 11 Sep 2019 21:57:45 +1000	[thread overview]
Message-ID: <20190911115746.12433-3-mpe@ellerman.id.au> (raw)
In-Reply-To: <20190911115746.12433-1-mpe@ellerman.id.au>

All the code in kvm.c can be marked __init. Most of it is already
inlined into the initcall, but not all. So instead of relying on the
inlining, mark it all as __init. This saves ~280 bytes of text for my
configuration.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/kernel/kvm.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index e3b5aa583319..617eba82531c 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -68,13 +68,13 @@ extern char kvm_tmp[];
 extern char kvm_tmp_end[];
 static int kvm_tmp_index;
 
-static inline void kvm_patch_ins(u32 *inst, u32 new_inst)
+static void __init kvm_patch_ins(u32 *inst, u32 new_inst)
 {
 	*inst = new_inst;
 	flush_icache_range((ulong)inst, (ulong)inst + 4);
 }
 
-static void kvm_patch_ins_ll(u32 *inst, long addr, u32 rt)
+static void __init kvm_patch_ins_ll(u32 *inst, long addr, u32 rt)
 {
 #ifdef CONFIG_64BIT
 	kvm_patch_ins(inst, KVM_INST_LD | rt | (addr & 0x0000fffc));
@@ -83,7 +83,7 @@ static void kvm_patch_ins_ll(u32 *inst, long addr, u32 rt)
 #endif
 }
 
-static void kvm_patch_ins_ld(u32 *inst, long addr, u32 rt)
+static void __init kvm_patch_ins_ld(u32 *inst, long addr, u32 rt)
 {
 #ifdef CONFIG_64BIT
 	kvm_patch_ins(inst, KVM_INST_LD | rt | (addr & 0x0000fffc));
@@ -92,12 +92,12 @@ static void kvm_patch_ins_ld(u32 *inst, long addr, u32 rt)
 #endif
 }
 
-static void kvm_patch_ins_lwz(u32 *inst, long addr, u32 rt)
+static void __init kvm_patch_ins_lwz(u32 *inst, long addr, u32 rt)
 {
 	kvm_patch_ins(inst, KVM_INST_LWZ | rt | (addr & 0x0000ffff));
 }
 
-static void kvm_patch_ins_std(u32 *inst, long addr, u32 rt)
+static void __init kvm_patch_ins_std(u32 *inst, long addr, u32 rt)
 {
 #ifdef CONFIG_64BIT
 	kvm_patch_ins(inst, KVM_INST_STD | rt | (addr & 0x0000fffc));
@@ -106,17 +106,17 @@ static void kvm_patch_ins_std(u32 *inst, long addr, u32 rt)
 #endif
 }
 
-static void kvm_patch_ins_stw(u32 *inst, long addr, u32 rt)
+static void __init kvm_patch_ins_stw(u32 *inst, long addr, u32 rt)
 {
 	kvm_patch_ins(inst, KVM_INST_STW | rt | (addr & 0x0000fffc));
 }
 
-static void kvm_patch_ins_nop(u32 *inst)
+static void __init kvm_patch_ins_nop(u32 *inst)
 {
 	kvm_patch_ins(inst, KVM_INST_NOP);
 }
 
-static void kvm_patch_ins_b(u32 *inst, int addr)
+static void __init kvm_patch_ins_b(u32 *inst, int addr)
 {
 #if defined(CONFIG_RELOCATABLE) && defined(CONFIG_PPC_BOOK3S)
 	/* On relocatable kernels interrupts handlers and our code
@@ -129,7 +129,7 @@ static void kvm_patch_ins_b(u32 *inst, int addr)
 	kvm_patch_ins(inst, KVM_INST_B | (addr & KVM_INST_B_MASK));
 }
 
-static u32 *kvm_alloc(int len)
+static u32 * __init kvm_alloc(int len)
 {
 	u32 *p;
 
@@ -152,7 +152,7 @@ extern u32 kvm_emulate_mtmsrd_orig_ins_offs;
 extern u32 kvm_emulate_mtmsrd_len;
 extern u32 kvm_emulate_mtmsrd[];
 
-static void kvm_patch_ins_mtmsrd(u32 *inst, u32 rt)
+static void __init kvm_patch_ins_mtmsrd(u32 *inst, u32 rt)
 {
 	u32 *p;
 	int distance_start;
@@ -205,7 +205,7 @@ extern u32 kvm_emulate_mtmsr_orig_ins_offs;
 extern u32 kvm_emulate_mtmsr_len;
 extern u32 kvm_emulate_mtmsr[];
 
-static void kvm_patch_ins_mtmsr(u32 *inst, u32 rt)
+static void __init kvm_patch_ins_mtmsr(u32 *inst, u32 rt)
 {
 	u32 *p;
 	int distance_start;
@@ -266,7 +266,7 @@ extern u32 kvm_emulate_wrtee_orig_ins_offs;
 extern u32 kvm_emulate_wrtee_len;
 extern u32 kvm_emulate_wrtee[];
 
-static void kvm_patch_ins_wrtee(u32 *inst, u32 rt, int imm_one)
+static void __init kvm_patch_ins_wrtee(u32 *inst, u32 rt, int imm_one)
 {
 	u32 *p;
 	int distance_start;
@@ -323,7 +323,7 @@ extern u32 kvm_emulate_wrteei_0_branch_offs;
 extern u32 kvm_emulate_wrteei_0_len;
 extern u32 kvm_emulate_wrteei_0[];
 
-static void kvm_patch_ins_wrteei_0(u32 *inst)
+static void __init kvm_patch_ins_wrteei_0(u32 *inst)
 {
 	u32 *p;
 	int distance_start;
@@ -364,7 +364,7 @@ extern u32 kvm_emulate_mtsrin_orig_ins_offs;
 extern u32 kvm_emulate_mtsrin_len;
 extern u32 kvm_emulate_mtsrin[];
 
-static void kvm_patch_ins_mtsrin(u32 *inst, u32 rt, u32 rb)
+static void __init kvm_patch_ins_mtsrin(u32 *inst, u32 rt, u32 rb)
 {
 	u32 *p;
 	int distance_start;
@@ -400,7 +400,7 @@ static void kvm_patch_ins_mtsrin(u32 *inst, u32 rt, u32 rb)
 
 #endif
 
-static void kvm_map_magic_page(void *data)
+static void __init kvm_map_magic_page(void *data)
 {
 	u32 *features = data;
 
@@ -415,7 +415,7 @@ static void kvm_map_magic_page(void *data)
 	*features = out[0];
 }
 
-static void kvm_check_ins(u32 *inst, u32 features)
+static void __init kvm_check_ins(u32 *inst, u32 features)
 {
 	u32 _inst = *inst;
 	u32 inst_no_rt = _inst & ~KVM_MASK_RT;
@@ -659,7 +659,7 @@ static void kvm_check_ins(u32 *inst, u32 features)
 extern u32 kvm_template_start[];
 extern u32 kvm_template_end[];
 
-static void kvm_use_magic_page(void)
+static void __init kvm_use_magic_page(void)
 {
 	u32 *p;
 	u32 *start, *end;
-- 
2.21.0


  parent reply	other threads:[~2019-09-11 12:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-11 11:57 [PATCH 1/4] powerpc/kvm: Move kvm_tmp into .text, shrink to 64K Michael Ellerman
2019-09-11 11:57 ` [PATCH 2/4] powerpc/64s: Remove overlaps_kvm_tmp() Michael Ellerman
2019-09-11 11:57 ` Michael Ellerman [this message]
2019-09-11 11:57 ` [PATCH 4/4] powerpc/kvm: Add ifdefs around template code Michael Ellerman
2019-09-19 10:25 ` [PATCH 1/4] powerpc/kvm: Move kvm_tmp into .text, shrink to 64K Michael Ellerman

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