51 lines
1.5 KiB
Diff
51 lines
1.5 KiB
Diff
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From: Frederic Weisbecker <fweisbec@gmail.com>
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https://bugzilla.kernel.org/show_bug.cgi?id=16315#c26
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http://bugs.winehq.org/show_bug.cgi?id=23323
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diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
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index 528a11e..824ca07 100644
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--- a/arch/x86/include/asm/hw_breakpoint.h
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+++ b/arch/x86/include/asm/hw_breakpoint.h
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@@ -20,7 +20,7 @@ struct arch_hw_breakpoint {
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#include <linux/list.h>
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/* Available HW breakpoint length encodings */
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-#define X86_BREAKPOINT_LEN_X 0x00
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+#define X86_BREAKPOINT_LEN_X 0x40
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#define X86_BREAKPOINT_LEN_1 0x40
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#define X86_BREAKPOINT_LEN_2 0x44
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#define X86_BREAKPOINT_LEN_4 0x4c
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diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
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index a474ec3..71123b1 100644
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--- a/arch/x86/kernel/hw_breakpoint.c
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+++ b/arch/x86/kernel/hw_breakpoint.c
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@@ -208,9 +208,6 @@ int arch_bp_generic_fields(int x86_len, int x86_type,
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{
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/* Len */
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switch (x86_len) {
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- case X86_BREAKPOINT_LEN_X:
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- *gen_len = sizeof(long);
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- break;
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case X86_BREAKPOINT_LEN_1:
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*gen_len = HW_BREAKPOINT_LEN_1;
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break;
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@@ -233,6 +230,7 @@ int arch_bp_generic_fields(int x86_len, int x86_type,
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switch (x86_type) {
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case X86_BREAKPOINT_EXECUTE:
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*gen_type = HW_BREAKPOINT_X;
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+ *gen_len = sizeof(long);
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break;
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case X86_BREAKPOINT_WRITE:
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*gen_type = HW_BREAKPOINT_W;
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@@ -316,9 +314,6 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
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ret = -EINVAL;
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switch (info->len) {
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- case X86_BREAKPOINT_LEN_X:
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- align = sizeof(long) -1;
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- break;
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case X86_BREAKPOINT_LEN_1:
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align = 0;
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break;
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