From: Alexandre Chartre <alexandre.chartre@oracle.com>
To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org,
peterz@infradead.org, x86@kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Cc: pbonzini@redhat.com, konrad.wilk@oracle.com,
jan.setjeeilers@oracle.com, liran.alon@oracle.com,
junaids@google.com, graf@amazon.de, rppt@linux.vnet.ibm.com,
kuzuno@gmail.com, mgross@linux.intel.com,
alexandre.chartre@oracle.com
Subject: [RFC v4][PATCH part-3 01/14] mm/asi: Define the test ASI type
Date: Mon, 4 May 2020 17:02:22 +0200 [thread overview]
Message-ID: <20200504150235.12171-2-alexandre.chartre@oracle.com> (raw)
In-Reply-To: <20200504150235.12171-1-alexandre.chartre@oracle.com>
Define the test ASI type which can be used for testing or experimenting
ASI.
Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
---
arch/x86/include/asm/asi.h | 2 ++
arch/x86/mm/asi.c | 1 +
drivers/staging/Makefile | 1 +
3 files changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/asi.h b/arch/x86/include/asm/asi.h
index eafed750e07f..de4f790c630b 100644
--- a/arch/x86/include/asm/asi.h
+++ b/arch/x86/include/asm/asi.h
@@ -66,6 +66,7 @@ struct asi_tlb_state {
#ifdef CONFIG_PAGE_TABLE_ISOLATION
#define ASI_PCID_PREFIX_USER 0x80 /* user ASI */
#endif
+#define ASI_PCID_PREFIX_TEST 0xff /* test ASI */
struct asi_type {
int pcid_prefix; /* PCID prefix */
@@ -156,6 +157,7 @@ extern int asi_init_dpt(struct dpt *dpt);
#ifdef CONFIG_PAGE_TABLE_ISOLATION
DECLARE_ASI_TYPE(user);
#endif
+DECLARE_ASI_TYPE(test);
static inline void asi_set_log_policy(struct asi *asi, int policy)
{
diff --git a/arch/x86/mm/asi.c b/arch/x86/mm/asi.c
index 8b670ed13729..e0b0d70415d7 100644
--- a/arch/x86/mm/asi.c
+++ b/arch/x86/mm/asi.c
@@ -17,6 +17,7 @@
#ifdef CONFIG_PAGE_TABLE_ISOLATION
DEFINE_ASI_TYPE(user, ASI_PCID_PREFIX_USER, false);
#endif
+DEFINE_ASI_TYPE(test, ASI_PCID_PREFIX_TEST, true);
static void asi_log_fault(struct asi *asi, struct pt_regs *regs,
unsigned long error_code, unsigned long address,
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 4d34198151b3..fb50e669579b 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -50,3 +50,4 @@ obj-$(CONFIG_FIELDBUS_DEV) += fieldbus/
obj-$(CONFIG_KPC2000) += kpc2000/
obj-$(CONFIG_QLGE) += qlge/
obj-$(CONFIG_WFX) += wfx/
+obj-$(CONFIG_ADDRESS_SPACE_ISOLATION) += asi/
--
2.18.2
next prev parent reply other threads:[~2020-05-04 15:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-04 15:02 [RFC v4][PATCH part-3 00/14] ASI - Part III (ASI Test Driver and CLI) Alexandre Chartre
2020-05-04 15:02 ` Alexandre Chartre [this message]
2020-05-04 15:02 ` [RFC v4][PATCH part-3 02/14] asidrv: Introduce the ASI driver Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 03/14] asidrv: Introduce the ASIDRV_IOCTL_RUN_SEQUENCE ioctl Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 04/14] asidrv: Sequence to test ASI access to mapped/unmapped memory Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 05/14] asidrv: Sequence to test interrupt on ASI Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 06/14] asidrv: Sequence to test NMI " Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 07/14] asidrv: Sequence to test interrupt+NMI " Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 08/14] asidrv: Sequence to test scheduling in/out with ASI Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 09/14] asidrv: Add ioctls to manage ASI page faults Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 10/14] asidrv: Add ioctls to manage ASI mapped VA ranges Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 11/14] asidrv/asicmd: Introduce the asicmd command Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 12/14] asidrv/asicmd: Add more test sequences for testing ASI Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 13/14] asidrv/asicmd: Add options to manage ASI page faults Alexandre Chartre
2020-05-04 15:02 ` [RFC v4][PATCH part-3 14/14] asidrv/asicmd: Add options to manage ASI mapped VA ranges Alexandre Chartre
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