Displaying 15 results from an estimated 15 matches for "ioio_type_str".
2020 Feb 11
0
[PATCH 19/62] x86/sev-es: Add support for handling IOIO exceptions
.../arch/x86/kernel/sev-es-shared.c b/arch/x86/kernel/sev-es-shared.c
index f83292c54ab7..bd21a79da084 100644
--- a/arch/x86/kernel/sev-es-shared.c
+++ b/arch/x86/kernel/sev-es-shared.c
@@ -235,3 +235,217 @@ static enum es_result insn_string_write(struct es_em_ctxt *ctxt,
return ret;
}
+
+#define IOIO_TYPE_STR BIT(2)
+#define IOIO_TYPE_IN 1
+#define IOIO_TYPE_INS (IOIO_TYPE_IN | IOIO_TYPE_STR)
+#define IOIO_TYPE_OUT 0
+#define IOIO_TYPE_OUTS (IOIO_TYPE_OUT | IOIO_TYPE_STR)
+
+#define IOIO_REP BIT(3)
+
+#define IOIO_ADDR_64 BIT(9)
+#define IOIO_ADDR_32 BIT(8)
+#define IOIO_ADDR_16 BIT(7)...
2020 Apr 28
0
[PATCH v3 25/75] x86/sev-es: Add support for handling IOIO exceptions
...ch/x86/kernel/sev-es-shared.c b/arch/x86/kernel/sev-es-shared.c
index 22eb3ed89186..5d4d0e2b7777 100644
--- a/arch/x86/kernel/sev-es-shared.c
+++ b/arch/x86/kernel/sev-es-shared.c
@@ -217,3 +217,205 @@ static enum es_result vc_insn_string_write(struct es_em_ctxt *ctxt,
return ret;
}
+
+#define IOIO_TYPE_STR BIT(2)
+#define IOIO_TYPE_IN 1
+#define IOIO_TYPE_INS (IOIO_TYPE_IN | IOIO_TYPE_STR)
+#define IOIO_TYPE_OUT 0
+#define IOIO_TYPE_OUTS (IOIO_TYPE_OUT | IOIO_TYPE_STR)
+
+#define IOIO_REP BIT(3)
+
+#define IOIO_ADDR_64 BIT(9)
+#define IOIO_ADDR_32 BIT(8)
+#define IOIO_ADDR_16 BIT(7)...
2020 May 16
1
[PATCH v3 25/75] x86/sev-es: Add support for handling IOIO exceptions
Just a reminder so that this doesn't get lost:
On Tue, Apr 28, 2020 at 05:16:35PM +0200, Joerg Roedel wrote:
> + if (exit_info_1 & IOIO_TYPE_STR) {
> + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1;
...
> +
> + if (!(exit_info_1 & IOIO_TYPE_IN)) {
> + ret = vc_insn_string_read(ctxt,
> + (void *)(es_base + regs->si),
> + ghcb->shared_buffer, io_bytes,
> + exit_inf...
2020 May 20
2
[PATCH v3 25/75] x86/sev-es: Add support for handling IOIO exceptions
...ct ghcb *ghcb, struct es_em_ctxt *ctxt)
> +{
> + struct pt_regs *regs = ctxt->regs;
> + u64 exit_info_1, exit_info_2;
> + enum es_result ret;
> +
> + ret = vc_ioio_exitinfo(ctxt, &exit_info_1);
> + if (ret != ES_OK)
> + return ret;
> +
> + if (exit_info_1 & IOIO_TYPE_STR) {
> + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1;
> + unsigned int io_bytes, exit_bytes;
> + unsigned int ghcb_count, op_count;
> + unsigned long es_base;
> + u64 sw_scratch;
> +
> + /*
> + * For the string variants with rep prefix the amount of in/out
&...
2020 May 20
2
[PATCH v3 25/75] x86/sev-es: Add support for handling IOIO exceptions
...ct ghcb *ghcb, struct es_em_ctxt *ctxt)
> +{
> + struct pt_regs *regs = ctxt->regs;
> + u64 exit_info_1, exit_info_2;
> + enum es_result ret;
> +
> + ret = vc_ioio_exitinfo(ctxt, &exit_info_1);
> + if (ret != ES_OK)
> + return ret;
> +
> + if (exit_info_1 & IOIO_TYPE_STR) {
> + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1;
> + unsigned int io_bytes, exit_bytes;
> + unsigned int ghcb_count, op_count;
> + unsigned long es_base;
> + u64 sw_scratch;
> +
> + /*
> + * For the string variants with rep prefix the amount of in/out
&...
2020 Feb 11
83
[RFC PATCH 00/62] Linux as SEV-ES Guest Support
Hi,
here is the first public post of the patch-set to enable Linux to run
under SEV-ES enabled hypervisors. The code is mostly feature-complete,
but there are still a couple of bugs to fix. Nevertheless, given the
size of the patch-set, I think it is about time to ask for initial
feedback of the changes that come with it. To better understand the code
here is a quick explanation of SEV-ES first.
2020 Feb 11
83
[RFC PATCH 00/62] Linux as SEV-ES Guest Support
Hi,
here is the first public post of the patch-set to enable Linux to run
under SEV-ES enabled hypervisors. The code is mostly feature-complete,
but there are still a couple of bugs to fix. Nevertheless, given the
size of the patch-set, I think it is about time to ask for initial
feedback of the changes that come with it. To better understand the code
here is a quick explanation of SEV-ES first.
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by
2020 Jul 24
86
[PATCH v5 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a rebased version of the latest SEV-ES patches. They are now
based on latest tip/master instead of upstream Linux and include the
necessary changes.
Changes to v4 are in particular:
- Moved early IDT setup code to idt.c, because the idt_descr
and the idt_table are now static
- This required to make stack protector work early (or
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into
2020 Aug 24
96
[PATCH v6 00/76] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the new version of the SEV-ES client enabling patch-set. It is
based on the latest tip/master branch and contains the necessary
changes. In particular those ar:
- Enabling CR4.FSGSBASE early on supported processors so that
early #VC exceptions on APs can be handled.
- Add another patch (patch 1) to fix a KVM frame-size build
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT