KVM Archive on lore.kernel.org
 help / color / Atom feed
From: Christian Borntraeger <borntraeger@de.ibm.com>
To: David Hildenbrand <david@redhat.com>,
	Janosch Frank <frankja@linux.vnet.ibm.com>
Cc: KVM <kvm@vger.kernel.org>, Cornelia Huck <cohuck@redhat.com>,
	Thomas Huth <thuth@redhat.com>,
	Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Michael Mueller <mimu@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>
Subject: Re: [PATCH v2 03/42] s390/protvirt: introduce host side setup
Date: Mon, 17 Feb 2020 12:11:41 +0100
Message-ID: <66cf54a2-8fec-e992-18a9-d72b22d46b97@de.ibm.com> (raw)
In-Reply-To: <8b6f790f-8d41-f9a8-1c9c-df900d22fa47@redhat.com>



On 17.02.20 10:53, David Hildenbrand wrote:
> On 14.02.20 23:26, Christian Borntraeger wrote:
>> From: Vasily Gorbik <gor@linux.ibm.com>
>>
>> Add "prot_virt" command line option which controls if the kernel
>> protected VMs support is enabled at early boot time. This has to be
>> done early, because it needs large amounts of memory and will disable
>> some features like STP time sync for the lpar.
>>
>> Extend ultravisor info definitions and expose it via uv_info struct
>> filled in during startup.
>>
>> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
>> Reviewed-by: Thomas Huth <thuth@redhat.com>
>> [borntraeger@de.ibm.com: patch merging, splitting, fixing]
>> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
>> ---
>>  .../admin-guide/kernel-parameters.txt         |  5 ++
>>  arch/s390/boot/Makefile                       |  2 +-
>>  arch/s390/boot/uv.c                           | 21 +++++++-
>>  arch/s390/include/asm/uv.h                    | 45 +++++++++++++++-
>>  arch/s390/kernel/Makefile                     |  1 +
>>  arch/s390/kernel/setup.c                      |  4 --
>>  arch/s390/kernel/uv.c                         | 52 +++++++++++++++++++
>>  7 files changed, 122 insertions(+), 8 deletions(-)
>>  create mode 100644 arch/s390/kernel/uv.c
>>
>> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
>> index dbc22d684627..b0beae9b9e36 100644
>> --- a/Documentation/admin-guide/kernel-parameters.txt
>> +++ b/Documentation/admin-guide/kernel-parameters.txt
>> @@ -3795,6 +3795,11 @@
>>  			before loading.
>>  			See Documentation/admin-guide/blockdev/ramdisk.rst.
>>  
>> +	prot_virt=	[S390] enable hosting protected virtual machines
>> +			isolated from the hypervisor (if hardware supports
>> +			that).
>> +			Format: <bool>
>> +
>>  	psi=		[KNL] Enable or disable pressure stall information
>>  			tracking.
>>  			Format: <bool>
>> diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
>> index e2c47d3a1c89..30f1811540c5 100644
>> --- a/arch/s390/boot/Makefile
>> +++ b/arch/s390/boot/Makefile
>> @@ -37,7 +37,7 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
>>  obj-y	:= head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
>>  obj-y	+= string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
>>  obj-y	+= version.o pgm_check_info.o ctype.o text_dma.o
>> -obj-$(CONFIG_PROTECTED_VIRTUALIZATION_GUEST)	+= uv.o
>> +obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE))	+= uv.o
>>  obj-$(CONFIG_RELOCATABLE)	+= machine_kexec_reloc.o
>>  obj-$(CONFIG_RANDOMIZE_BASE)	+= kaslr.o
>>  targets	:= bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y)
>> diff --git a/arch/s390/boot/uv.c b/arch/s390/boot/uv.c
>> index ed007f4a6444..af9e1cc93c68 100644
>> --- a/arch/s390/boot/uv.c
>> +++ b/arch/s390/boot/uv.c
>> @@ -3,7 +3,13 @@
>>  #include <asm/facility.h>
>>  #include <asm/sections.h>
>>  
>> +/* will be used in arch/s390/kernel/uv.c */
>> +#ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
>>  int __bootdata_preserved(prot_virt_guest);
>> +#endif
>> +#if IS_ENABLED(CONFIG_KVM)
>> +struct uv_info __bootdata_preserved(uv_info);
>> +#endif
>>  
>>  void uv_query_info(void)
>>  {
>> @@ -18,7 +24,20 @@ void uv_query_info(void)
>>  	if (uv_call(0, (uint64_t)&uvcb))
>>  		return;
>>  
>> -	if (test_bit_inv(BIT_UVC_CMD_SET_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list) &&
>> +	if (IS_ENABLED(CONFIG_KVM)) {
>> +		memcpy(uv_info.inst_calls_list, uvcb.inst_calls_list, sizeof(uv_info.inst_calls_list));
>> +		uv_info.uv_base_stor_len = uvcb.uv_base_stor_len;
>> +		uv_info.guest_base_stor_len = uvcb.conf_base_phys_stor_len;
>> +		uv_info.guest_virt_base_stor_len = uvcb.conf_base_virt_stor_len;
>> +		uv_info.guest_virt_var_stor_len = uvcb.conf_virt_var_stor_len;
>> +		uv_info.guest_cpu_stor_len = uvcb.cpu_stor_len;
>> +		uv_info.max_sec_stor_addr = ALIGN(uvcb.max_guest_stor_addr, PAGE_SIZE);
>> +		uv_info.max_num_sec_conf = uvcb.max_num_sec_conf;
>> +		uv_info.max_guest_cpus = uvcb.max_guest_cpus;
>> +	}
>> +
>> +	if (IS_ENABLED(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) &&
>> +	    test_bit_inv(BIT_UVC_CMD_SET_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list) &&
>>  	    test_bit_inv(BIT_UVC_CMD_REMOVE_SHARED_ACCESS, (unsigned long *)uvcb.inst_calls_list))
>>  		prot_virt_guest = 1;
>>  }
>> diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
>> index 4093a2856929..34b1114dcc38 100644
>> --- a/arch/s390/include/asm/uv.h
>> +++ b/arch/s390/include/asm/uv.h
>> @@ -44,7 +44,19 @@ struct uv_cb_qui {
>>  	struct uv_cb_header header;
>>  	u64 reserved08;
>>  	u64 inst_calls_list[4];
>> -	u64 reserved30[15];
>> +	u64 reserved30[2];
>> +	u64 uv_base_stor_len;
>> +	u64 reserved48;
>> +	u64 conf_base_phys_stor_len;
>> +	u64 conf_base_virt_stor_len;
>> +	u64 conf_virt_var_stor_len;
>> +	u64 cpu_stor_len;
>> +	u32 reserved70[3];
>> +	u32 max_num_sec_conf;
>> +	u64 max_guest_stor_addr;
>> +	u8  reserved88[158-136];
>> +	u16 max_guest_cpus;
>> +	u64 reserveda0;
>>  } __packed __aligned(8);
>>  
>>  struct uv_cb_share {
>> @@ -69,6 +81,19 @@ static inline int uv_call(unsigned long r1, unsigned long r2)
>>  	return cc;
>>  }
>>  
>> +struct uv_info {
>> +	unsigned long inst_calls_list[4];
>> +	unsigned long uv_base_stor_len;
>> +	unsigned long guest_base_stor_len;
>> +	unsigned long guest_virt_base_stor_len;
>> +	unsigned long guest_virt_var_stor_len;
>> +	unsigned long guest_cpu_stor_len;
>> +	unsigned long max_sec_stor_addr;
>> +	unsigned int max_num_sec_conf;
>> +	unsigned short max_guest_cpus;
>> +};
>> +extern struct uv_info uv_info;
>> +
>>  #ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
>>  extern int prot_virt_guest;
>>  
>> @@ -121,11 +146,27 @@ static inline int uv_remove_shared(unsigned long addr)
>>  	return share(addr, UVC_CMD_REMOVE_SHARED_ACCESS);
>>  }
>>  
>> -void uv_query_info(void);
>>  #else
>>  #define is_prot_virt_guest() 0
>>  static inline int uv_set_shared(unsigned long addr) { return 0; }
>>  static inline int uv_remove_shared(unsigned long addr) { return 0; }
>> +#endif
>> +
>> +#if IS_ENABLED(CONFIG_KVM)
>> +extern int prot_virt_host;
>> +
>> +static inline int is_prot_virt_host(void)
>> +{
>> +	return prot_virt_host;
>> +}
>> +#else
>> +#define is_prot_virt_host() 0
>> +#endif
>> +
>> +#if defined(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) ||                          \
>> +	IS_ENABLED(CONFIG_KVM)
>> +void uv_query_info(void);
>> +#else
>>  static inline void uv_query_info(void) {}
>>  #endif
>>  
>> diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
>> index 2b1203cf7be6..22bfb8d5084e 100644
>> --- a/arch/s390/kernel/Makefile
>> +++ b/arch/s390/kernel/Makefile
>> @@ -78,6 +78,7 @@ obj-$(CONFIG_PERF_EVENTS)	+= perf_cpum_cf_events.o perf_regs.o
>>  obj-$(CONFIG_PERF_EVENTS)	+= perf_cpum_cf_diag.o
>>  
>>  obj-$(CONFIG_TRACEPOINTS)	+= trace.o
>> +obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE))	+= uv.o
>>  
>>  # vdso
>>  obj-y				+= vdso64/
>> diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
>> index b2c2f75860e8..a2496382175e 100644
>> --- a/arch/s390/kernel/setup.c
>> +++ b/arch/s390/kernel/setup.c
>> @@ -92,10 +92,6 @@ char elf_platform[ELF_PLATFORM_SIZE];
>>  
>>  unsigned long int_hwcap = 0;
>>  
>> -#ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
>> -int __bootdata_preserved(prot_virt_guest);
>> -#endif
>> -
>>  int __bootdata(noexec_disabled);
>>  int __bootdata(memory_end_set);
>>  unsigned long __bootdata(memory_end);
>> diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
>> new file mode 100644
>> index 000000000000..b1f936710360
>> --- /dev/null
>> +++ b/arch/s390/kernel/uv.c
>> @@ -0,0 +1,52 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * Common Ultravisor functions and initialization
>> + *
>> + * Copyright IBM Corp. 2019, 2020
>> + */
>> +#define KMSG_COMPONENT "prot_virt"
>> +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/types.h>
>> +#include <linux/sizes.h>
>> +#include <linux/bitmap.h>
>> +#include <linux/memblock.h>
>> +#include <asm/facility.h>
>> +#include <asm/sections.h>
>> +#include <asm/uv.h>
>> +
>> +/* the bootdata_preserved fields come from ones in arch/s390/boot/uv.c */
>> +#ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
>> +int __bootdata_preserved(prot_virt_guest);
>> +#endif
>> +
>> +#if IS_ENABLED(CONFIG_KVM)
> 
> 
> Why is that glued to CONFIG_KVM? Can't we glue all that stuff to
> CONFIG_PROTECTED_VIRTUALIZATION_GUEST and make in kconfig
> CONFIG_PROTECTED_VIRTUALIZATION_GUEST depend on CONFIG_KVM?


CONFIG_PROTECTED_VIRTUALIZATION_GUEST is for the GUEST part (the virtio-ccw changes
inside the guest). The other thing is for the host and here we bind it
to CONFIG_KVM (or PGSTE for mm code).

> 
> IOW, I'd prefer to only have CONFIG_PROTECTED_VIRTUALIZATION_GUEST in
> !KVM code and enforce it via kconfig instead.
> 
> 
> Anyhow, I remember Conny also having a comment about that previously, so
> 
> Acked-by: David Hildenbrand <david@redhat.com>
> 
> 


  reply index

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-14 22:26 [PATCH v2 00/42] KVM: s390: Add support for protected VMs Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 01/42] mm:gup/writeback: add callbacks for inaccessible pages Christian Borntraeger
2020-02-17  9:14   ` David Hildenbrand
2020-02-17 11:10     ` Christian Borntraeger
2020-02-18  8:27       ` David Hildenbrand
2020-02-18 15:46         ` Sean Christopherson
2020-02-18 16:02           ` Will Deacon
2020-02-18 16:15             ` Christian Borntraeger
2020-02-18 21:35               ` Sean Christopherson
2020-02-19  8:31                 ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 02/42] KVM: s390/interrupt: do not pin adapter interrupt pages Christian Borntraeger
2020-02-17  9:43   ` David Hildenbrand
2020-02-20 12:18     ` David Hildenbrand
2020-02-20 13:31     ` Christian Borntraeger
2020-02-20 13:34       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 03/42] s390/protvirt: introduce host side setup Christian Borntraeger
2020-02-17  9:53   ` David Hildenbrand
2020-02-17 11:11     ` Christian Borntraeger [this message]
2020-02-17 11:13       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 04/42] s390/protvirt: add ultravisor initialization Christian Borntraeger
2020-02-17  9:57   ` David Hildenbrand
2020-02-17 11:13     ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 05/42] s390/mm: provide memory management functions for protected KVM guests Christian Borntraeger
2020-02-17 10:21   ` David Hildenbrand
2020-02-17 11:28     ` Christian Borntraeger
2020-02-17 12:07       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 06/42] s390/mm: add (non)secure page access exceptions handlers Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 07/42] KVM: s390: protvirt: Add UV debug trace Christian Borntraeger
2020-02-17 10:41   ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 08/42] KVM: s390: add new variants of UV CALL Christian Borntraeger
2020-02-17 10:42   ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 09/42] KVM: s390: protvirt: Add initial vm and cpu lifecycle handling Christian Borntraeger
2020-02-17 10:56   ` David Hildenbrand
2020-02-17 12:04     ` Christian Borntraeger
2020-02-17 12:09       ` David Hildenbrand
2020-02-17 14:53         ` [PATCH 0/2] example changes Christian Borntraeger
2020-02-17 14:53           ` [PATCH 1/2] lock changes Christian Borntraeger
2020-02-17 14:53           ` [PATCH 2/2] merge vm/cpu create Christian Borntraeger
2020-02-17 15:00             ` Janosch Frank
2020-02-17 15:02               ` Christian Borntraeger
2020-02-19 11:02               ` Christian Borntraeger
2020-02-17 19:18           ` [PATCH 0/2] example changes David Hildenbrand
2020-02-18  8:09     ` [PATCH v2 09/42] KVM: s390: protvirt: Add initial vm and cpu lifecycle handling Christian Borntraeger
2020-02-18  8:39   ` [PATCH v2.1] " Christian Borntraeger
2020-02-18  9:12     ` David Hildenbrand
2020-02-18 21:18       ` Christian Borntraeger
2020-02-19  8:32         ` David Hildenbrand
2020-02-19 11:01       ` Christian Borntraeger
2020-02-18  9:56     ` David Hildenbrand
2020-02-18 20:26       ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 10/42] KVM: s390: protvirt: Add KVM api documentation Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 11/42] KVM: s390: protvirt: Secure memory is not mergeable Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 12/42] KVM: s390/mm: Make pages accessible before destroying the guest Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 13/42] KVM: s390: protvirt: Handle SE notification interceptions Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 14/42] KVM: s390: protvirt: Instruction emulation Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 15/42] KVM: s390: protvirt: Add interruption injection controls Christian Borntraeger
2020-02-17 10:59   ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 16/42] KVM: s390: protvirt: Implement interruption injection Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 17/42] KVM: s390: protvirt: Add SCLP interrupt handling Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 18/42] KVM: s390: protvirt: Handle spec exception loops Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 19/42] KVM: s390: protvirt: Add new gprs location handling Christian Borntraeger
2020-02-17 11:01   ` David Hildenbrand
2020-02-17 11:33     ` Christian Borntraeger
2020-02-17 14:37     ` Janosch Frank
2020-02-14 22:26 ` [PATCH v2 20/42] KVM: S390: protvirt: Introduce instruction data area bounce buffer Christian Borntraeger
2020-02-17 11:08   ` David Hildenbrand
2020-02-17 14:47     ` Janosch Frank
2020-02-17 15:00       ` Christian Borntraeger
2020-02-17 15:38         ` Janosch Frank
2020-02-17 16:58           ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 21/42] KVM: s390: protvirt: handle secure guest prefix pages Christian Borntraeger
2020-02-17 11:11   ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 22/42] KVM: s390/mm: handle guest unpin events Christian Borntraeger
2020-02-17 14:23   ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 23/42] KVM: s390: protvirt: Write sthyi data to instruction data area Christian Borntraeger
2020-02-17 14:24   ` David Hildenbrand
2020-02-17 18:40     ` Christian Borntraeger
2020-02-17 19:16       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 24/42] KVM: s390: protvirt: STSI handling Christian Borntraeger
2020-02-18  8:35   ` David Hildenbrand
2020-02-18  8:44     ` Christian Borntraeger
2020-02-18  9:08       ` David Hildenbrand
2020-02-18  9:11         ` Christian Borntraeger
2020-02-18  9:13           ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 25/42] KVM: s390: protvirt: disallow one_reg Christian Borntraeger
2020-02-18  8:40   ` David Hildenbrand
2020-02-18  8:57     ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 26/42] KVM: s390: protvirt: Do only reset registers that are accessible Christian Borntraeger
2020-02-18  8:42   ` David Hildenbrand
2020-02-18  9:20     ` Christian Borntraeger
2020-02-18  9:28       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 27/42] KVM: s390: protvirt: Only sync fmt4 registers Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 28/42] KVM: s390: protvirt: Add program exception injection Christian Borntraeger
2020-02-18  9:33   ` David Hildenbrand
2020-02-18  9:37     ` Christian Borntraeger
2020-02-18  9:39       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 29/42] KVM: s390: protvirt: Add diag 308 subcode 8 - 10 handling Christian Borntraeger
2020-02-18  9:38   ` David Hildenbrand
2020-02-19 12:45     ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 30/42] KVM: s390: protvirt: UV calls in support of diag308 0, 1 Christian Borntraeger
2020-02-18  9:44   ` David Hildenbrand
2020-02-19 11:53     ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 31/42] KVM: s390: protvirt: Report CPU state to Ultravisor Christian Borntraeger
2020-02-18  9:48   ` David Hildenbrand
2020-02-19 19:36     ` Christian Borntraeger
2020-02-19 19:46       ` Christian Borntraeger
2020-02-20 10:52         ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 32/42] KVM: s390: protvirt: Support cmd 5 operation state Christian Borntraeger
2020-02-18  9:50   ` David Hildenbrand
2020-02-19 11:06     ` Christian Borntraeger
2020-02-19 11:08       ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 33/42] KVM: s390: protvirt: Mask PSW interrupt bits for interception 104 and 112 Christian Borntraeger
2020-02-18  9:53   ` David Hildenbrand
2020-02-18 10:02     ` David Hildenbrand
2020-02-18 10:05     ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 34/42] KVM: s390: protvirt: do not inject interrupts after start Christian Borntraeger
2020-02-18  9:53   ` David Hildenbrand
2020-02-18 10:02     ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 35/42] KVM: s390: protvirt: Add UV cpu reset calls Christian Borntraeger
2020-02-18  9:54   ` David Hildenbrand
2020-02-14 22:26 ` [PATCH v2 36/42] DOCUMENTATION: Protected virtual machine introduction and IPL Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 37/42] s390/uv: Fix handling of length extensions (already in s390 tree) Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 38/42] s390: protvirt: Add sysfs firmware interface for Ultravisor information Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 39/42] example for future extension: mm:gup/writeback: add callbacks for inaccessible pages: error cases Christian Borntraeger
2020-02-18 16:25   ` Will Deacon
2020-02-18 16:30     ` Christian Borntraeger
2020-02-18 16:33       ` Will Deacon
2020-02-14 22:26 ` [PATCH v2 40/42] example for future extension: mm:gup/writeback: add callbacks for inaccessible pages: source indication Christian Borntraeger
2020-02-17 14:15   ` Ulrich Weigand
2020-02-17 14:38     ` Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 41/42] potential fixup for "s390/mm: provide memory management functions for protected KVM guests" Christian Borntraeger
2020-02-14 22:26 ` [PATCH v2 42/42] KVM: s390: rstify new ioctls in api.rst Christian Borntraeger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=66cf54a2-8fec-e992-18a9-d72b22d46b97@de.ibm.com \
    --to=borntraeger@de.ibm.com \
    --cc=Ulrich.Weigand@de.ibm.com \
    --cc=cohuck@redhat.com \
    --cc=david@redhat.com \
    --cc=frankja@linux.vnet.ibm.com \
    --cc=gor@linux.ibm.com \
    --cc=imbrenda@linux.ibm.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=mimu@linux.ibm.com \
    --cc=thuth@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

KVM Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/kvm/0 kvm/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 kvm kvm/ https://lore.kernel.org/kvm \
		kvm@vger.kernel.org
	public-inbox-index kvm

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.kvm


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git