[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-11 Thread tip-bot for David Woodhouse 
Commit-ID:  ea08816d5b185ab3d09e95e393f265af54560350
Gitweb: https://git.kernel.org/tip/ea08816d5b185ab3d09e95e393f265af54560350
Author: David Woodhouse 
AuthorDate: Thu, 11 Jan 2018 21:46:31 +
Committer:  Thomas Gleixner 
CommitDate: Fri, 12 Jan 2018 00:14:31 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Reviewed-by: Juergen Gross 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Josh Poimboeuf 
Cc: thomas.lenda...@amd.com
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515707194-20531-10-git-send-email-d...@amazon.co.uk

---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-11 Thread tip-bot for David Woodhouse 
Commit-ID:  ea08816d5b185ab3d09e95e393f265af54560350
Gitweb: https://git.kernel.org/tip/ea08816d5b185ab3d09e95e393f265af54560350
Author: David Woodhouse 
AuthorDate: Thu, 11 Jan 2018 21:46:31 +
Committer:  Thomas Gleixner 
CommitDate: Fri, 12 Jan 2018 00:14:31 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Reviewed-by: Juergen Gross 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Josh Poimboeuf 
Cc: thomas.lenda...@amd.com
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515707194-20531-10-git-send-email-d...@amazon.co.uk

---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-10 Thread tip-bot for David Woodhouse 
Commit-ID:  b569cb1e72bda00e7e6245519fe7d0d0ab13898e
Gitweb: https://git.kernel.org/tip/b569cb1e72bda00e7e6245519fe7d0d0ab13898e
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Wed, 10 Jan 2018 19:36:25 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk


---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-10 Thread tip-bot for David Woodhouse 
Commit-ID:  b569cb1e72bda00e7e6245519fe7d0d0ab13898e
Gitweb: https://git.kernel.org/tip/b569cb1e72bda00e7e6245519fe7d0d0ab13898e
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Wed, 10 Jan 2018 19:36:25 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk


---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-10 Thread tip-bot for David Woodhouse 
Commit-ID:  9cc0128d93281e7f3be300b2b933d7c363b1ab26
Gitweb: https://git.kernel.org/tip/9cc0128d93281e7f3be300b2b933d7c363b1ab26
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Wed, 10 Jan 2018 19:09:11 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk


---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-10 Thread tip-bot for David Woodhouse 
Commit-ID:  9cc0128d93281e7f3be300b2b933d7c363b1ab26
Gitweb: https://git.kernel.org/tip/9cc0128d93281e7f3be300b2b933d7c363b1ab26
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Wed, 10 Jan 2018 19:09:11 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk


---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-10 Thread tip-bot for David Woodhouse 
Commit-ID:  5a6407e118225497fff1f503acbba96cd2abd21c
Gitweb: https://git.kernel.org/tip/5a6407e118225497fff1f503acbba96cd2abd21c
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Wed, 10 Jan 2018 18:28:23 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk


---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-10 Thread tip-bot for David Woodhouse 
Commit-ID:  5a6407e118225497fff1f503acbba96cd2abd21c
Gitweb: https://git.kernel.org/tip/5a6407e118225497fff1f503acbba96cd2abd21c
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Wed, 10 Jan 2018 18:28:23 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk


---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-09 Thread tip-bot for David Woodhouse 
Commit-ID:  8081a6f40dc2f74d40424addf2f5a63c5b85107b
Gitweb: https://git.kernel.org/tip/8081a6f40dc2f74d40424addf2f5a63c5b85107b
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Tue, 9 Jan 2018 16:17:54 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk

---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();

[tip:x86/pti] x86/retpoline/xen: Convert Xen hypercall indirect jumps

2018-01-09 Thread tip-bot for David Woodhouse 
Commit-ID:  8081a6f40dc2f74d40424addf2f5a63c5b85107b
Gitweb: https://git.kernel.org/tip/8081a6f40dc2f74d40424addf2f5a63c5b85107b
Author: David Woodhouse 
AuthorDate: Tue, 9 Jan 2018 14:43:14 +
Committer:  Thomas Gleixner 
CommitDate: Tue, 9 Jan 2018 16:17:54 +0100

x86/retpoline/xen: Convert Xen hypercall indirect jumps

Convert indirect call in Xen hypercall to use non-speculative sequence,
when CONFIG_RETPOLINE is enabled.

Signed-off-by: David Woodhouse 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Juergen Gross 
Acked-by: Arjan van de Ven 
Acked-by: Ingo Molnar 
Cc: gno...@lxorguk.ukuu.org.uk
Cc: Rik van Riel 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Linus Torvalds 
Cc: Jiri Kosina 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Kees Cook 
Cc: Tim Chen 
Cc: Greg Kroah-Hartman 
Cc: Paul Turner 
Link: 
https://lkml.kernel.org/r/1515508997-6154-9-git-send-email-d...@amazon.co.uk

---
 arch/x86/include/asm/xen/hypercall.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h 
b/arch/x86/include/asm/xen/hypercall.h
index 7cb282e..bfd8826 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -44,6 +44,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include 
 #include 
@@ -217,9 +218,9 @@ privcmd_call(unsigned call,
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
stac();
-   asm volatile("call *%[call]"
+   asm volatile(CALL_NOSPEC
 : __HYPERCALL_5PARAM
-: [call] "a" (_page[call])
+: [thunk_target] "a" (_page[call])
 : __HYPERCALL_CLOBBER5);
clac();