All of lore.kernel.org
 help / color / mirror / Atom feed
From: Roman Kisel <romank@linux.microsoft.com>
To: arnd@arndb.de, bhelgaas@google.com, bp@alien8.de,
	catalin.marinas@arm.com, dave.hansen@linux.intel.com,
	decui@microsoft.com, haiyangz@microsoft.com, hpa@zytor.com,
	kw@linux.com, kys@microsoft.com, lenb@kernel.org,
	lpieralisi@kernel.org, mingo@redhat.com, mhklinux@outlook.com,
	rafael@kernel.org, robh@kernel.org, tglx@linutronix.de,
	wei.liu@kernel.org, will@kernel.org, linux-acpi@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org, x86@kernel.org
Cc: ssengar@microsoft.com, sunilmut@microsoft.com, vdso@hexbites.dev
Subject: [PATCH v2 2/6] drivers/hv: Enable VTL mode for arm64
Date: Tue, 14 May 2024 15:43:49 -0700	[thread overview]
Message-ID: <20240514224508.212318-3-romank@linux.microsoft.com> (raw)
In-Reply-To: <20240514224508.212318-1-romank@linux.microsoft.com>

Kconfig dependencies for arm64 guests on Hyper-V require that be ACPI enabled,
and limit VTL mode to x86/x64. To enable VTL mode on arm64 as well, update the
dependencies. Since VTL mode requires DeviceTree instead of ACPI, don’t require
arm64 guests on Hyper-V to have ACPI.

Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
---
 drivers/hv/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 862c47b191af..a5cd1365e248 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -5,7 +5,7 @@ menu "Microsoft Hyper-V guest support"
 config HYPERV
 	tristate "Microsoft Hyper-V client drivers"
 	depends on (X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \
-		|| (ACPI && ARM64 && !CPU_BIG_ENDIAN)
+		|| (ARM64 && !CPU_BIG_ENDIAN)
 	select PARAVIRT
 	select X86_HV_CALLBACK_VECTOR if X86
 	select OF_EARLY_FLATTREE if OF
@@ -15,7 +15,7 @@ config HYPERV
 
 config HYPERV_VTL_MODE
 	bool "Enable Linux to boot in VTL context"
-	depends on X86_64 && HYPERV
+	depends on HYPERV
 	depends on SMP
 	default n
 	help
@@ -31,7 +31,7 @@ config HYPERV_VTL_MODE
 
 	  Select this option to build a Linux kernel to run at a VTL other than
 	  the normal VTL0, which currently is only VTL2.  This option
-	  initializes the x86 platform for VTL2, and adds the ability to boot
+	  initializes the kernel to run in VTL2, and adds the ability to boot
 	  secondary CPUs directly into 64-bit context as required for VTLs other
 	  than 0.  A kernel built with this option must run at VTL2, and will
 	  not run as a normal guest.
-- 
2.45.0


WARNING: multiple messages have this Message-ID (diff)
From: Roman Kisel <romank@linux.microsoft.com>
To: arnd@arndb.de, bhelgaas@google.com, bp@alien8.de,
	catalin.marinas@arm.com, dave.hansen@linux.intel.com,
	decui@microsoft.com, haiyangz@microsoft.com, hpa@zytor.com,
	kw@linux.com, kys@microsoft.com, lenb@kernel.org,
	lpieralisi@kernel.org, mingo@redhat.com, mhklinux@outlook.com,
	rafael@kernel.org, robh@kernel.org, tglx@linutronix.de,
	wei.liu@kernel.org, will@kernel.org, linux-acpi@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org, x86@kernel.org
Cc: ssengar@microsoft.com, sunilmut@microsoft.com, vdso@hexbites.dev
Subject: [PATCH v2 2/6] drivers/hv: Enable VTL mode for arm64
Date: Tue, 14 May 2024 15:43:49 -0700	[thread overview]
Message-ID: <20240514224508.212318-3-romank@linux.microsoft.com> (raw)
In-Reply-To: <20240514224508.212318-1-romank@linux.microsoft.com>

Kconfig dependencies for arm64 guests on Hyper-V require that be ACPI enabled,
and limit VTL mode to x86/x64. To enable VTL mode on arm64 as well, update the
dependencies. Since VTL mode requires DeviceTree instead of ACPI, don’t require
arm64 guests on Hyper-V to have ACPI.

Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
---
 drivers/hv/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 862c47b191af..a5cd1365e248 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -5,7 +5,7 @@ menu "Microsoft Hyper-V guest support"
 config HYPERV
 	tristate "Microsoft Hyper-V client drivers"
 	depends on (X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \
-		|| (ACPI && ARM64 && !CPU_BIG_ENDIAN)
+		|| (ARM64 && !CPU_BIG_ENDIAN)
 	select PARAVIRT
 	select X86_HV_CALLBACK_VECTOR if X86
 	select OF_EARLY_FLATTREE if OF
@@ -15,7 +15,7 @@ config HYPERV
 
 config HYPERV_VTL_MODE
 	bool "Enable Linux to boot in VTL context"
-	depends on X86_64 && HYPERV
+	depends on HYPERV
 	depends on SMP
 	default n
 	help
@@ -31,7 +31,7 @@ config HYPERV_VTL_MODE
 
 	  Select this option to build a Linux kernel to run at a VTL other than
 	  the normal VTL0, which currently is only VTL2.  This option
-	  initializes the x86 platform for VTL2, and adds the ability to boot
+	  initializes the kernel to run in VTL2, and adds the ability to boot
 	  secondary CPUs directly into 64-bit context as required for VTLs other
 	  than 0.  A kernel built with this option must run at VTL2, and will
 	  not run as a normal guest.
-- 
2.45.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2024-05-14 22:45 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-14 22:43 [PATCH v2 0/6] arm64/hyperv: Support Virtual Trust Level Boot Roman Kisel
2024-05-14 22:43 ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 1/6] arm64/hyperv: Support DeviceTree Roman Kisel
2024-05-14 22:43   ` Roman Kisel
2024-05-15  7:45   ` Krzysztof Kozlowski
2024-05-15  7:45     ` Krzysztof Kozlowski
2024-05-15 17:33     ` Roman Kisel
2024-05-15 17:33       ` Roman Kisel
2024-05-20  6:45       ` Krzysztof Kozlowski
2024-05-20  6:45         ` Krzysztof Kozlowski
2024-05-20 20:36         ` Roman Kisel
2024-05-20 20:36           ` Roman Kisel
2024-05-15 22:02   ` Elliot Berman
2024-05-15 22:02     ` Elliot Berman
2024-05-16 15:27     ` Roman Kisel
2024-05-16 15:27       ` Roman Kisel
2024-06-11 14:55       ` Roman Kisel
2024-06-11 14:55         ` Roman Kisel
2024-05-14 22:43 ` Roman Kisel [this message]
2024-05-14 22:43   ` [PATCH v2 2/6] drivers/hv: Enable VTL mode for arm64 Roman Kisel
2024-05-15 13:37   ` Michael Kelley
2024-05-15 13:37     ` Michael Kelley
2024-05-15 18:04     ` Roman Kisel
2024-05-15 18:04       ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 3/6] drivers/hv: arch-neutral implementation of get_vtl() Roman Kisel
2024-05-14 22:43   ` Roman Kisel
2024-05-15 13:38   ` Michael Kelley
2024-05-15 13:38     ` Michael Kelley
2024-05-15 18:11     ` Roman Kisel
2024-05-15 18:11       ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 4/6] arm64/hyperv: Boot in a Virtual Trust Level Roman Kisel
2024-05-14 22:43   ` Roman Kisel
2024-05-15 13:39   ` Michael Kelley
2024-05-15 13:39     ` Michael Kelley
2024-05-15 18:13     ` Roman Kisel
2024-05-15 18:13       ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 5/6] drivers/hv/vmbus: Get the irq number from DeviceTree Roman Kisel
2024-05-14 22:43   ` Roman Kisel
2024-05-15  7:47   ` Krzysztof Kozlowski
2024-05-15  7:47     ` Krzysztof Kozlowski
2024-05-15 17:05     ` Roman Kisel
2024-05-15 17:05       ` Roman Kisel
2024-05-15  9:42   ` Saurabh Singh Sengar
2024-05-15  9:42     ` Saurabh Singh Sengar
2024-05-15 16:31     ` Roman Kisel
2024-05-15 16:31       ` Roman Kisel
2024-05-15 13:44   ` Michael Kelley
2024-05-15 13:44     ` Michael Kelley
2024-05-15 18:21     ` Roman Kisel
2024-05-15 18:21       ` Roman Kisel
2024-05-16  2:40   ` kernel test robot
2024-05-16  2:40     ` kernel test robot
2024-05-17 17:14   ` Rob Herring
2024-05-17 17:14     ` Rob Herring
2024-05-20 19:25     ` Roman Kisel
2024-05-20 19:25       ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 6/6] drivers/pci/hyperv/arm64: vPCI MSI IRQ domain from DT Roman Kisel
2024-05-14 22:43   ` Roman Kisel
2024-05-15  9:48   ` Saurabh Singh Sengar
2024-05-15  9:48     ` Saurabh Singh Sengar
2024-05-15 16:34     ` Roman Kisel
2024-05-15 16:34       ` Roman Kisel
2024-05-15 18:12       ` Bjorn Helgaas
2024-05-15 18:12         ` Bjorn Helgaas
2024-05-15 18:34         ` Roman Kisel
2024-05-15 18:34           ` Roman Kisel
2024-06-07 19:55         ` Bjorn Helgaas
2024-06-07 19:55           ` Bjorn Helgaas
2024-06-11 14:40           ` Roman Kisel
2024-06-11 14:40             ` Roman Kisel
2024-05-15 13:47   ` Michael Kelley
2024-05-15 13:47     ` Michael Kelley
2024-05-15 18:31     ` Roman Kisel
2024-05-15 18:31       ` Roman Kisel

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=20240514224508.212318-3-romank@linux.microsoft.com \
    --to=romank@linux.microsoft.com \
    --cc=arnd@arndb.de \
    --cc=bhelgaas@google.com \
    --cc=bp@alien8.de \
    --cc=catalin.marinas@arm.com \
    --cc=dave.hansen@linux.intel.com \
    --cc=decui@microsoft.com \
    --cc=haiyangz@microsoft.com \
    --cc=hpa@zytor.com \
    --cc=kw@linux.com \
    --cc=kys@microsoft.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-hyperv@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=lpieralisi@kernel.org \
    --cc=mhklinux@outlook.com \
    --cc=mingo@redhat.com \
    --cc=rafael@kernel.org \
    --cc=robh@kernel.org \
    --cc=ssengar@microsoft.com \
    --cc=sunilmut@microsoft.com \
    --cc=tglx@linutronix.de \
    --cc=vdso@hexbites.dev \
    --cc=wei.liu@kernel.org \
    --cc=will@kernel.org \
    --cc=x86@kernel.org \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.