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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: x86@kernel.org, Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Rob Herring <robh@kernel.org>,
	 "K. Y. Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	 Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
	 Michael Kelley <mhklinux@outlook.com>,
	devicetree@vger.kernel.org,
	 Saurabh Sengar <ssengar@linux.microsoft.com>,
	Chris Oo <cho@microsoft.com>,
	linux-hyperv@vger.kernel.org,
	 "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	 "Ravi V. Shankar" <ravi.v.shankar@intel.com>,
	Ricardo Neri <ricardo.neri@intel.com>
Subject: Re: [PATCH v3 06/13] dt-bindings: reserved-memory: Wakeup Mailbox for Intel processors
Date: Tue, 6 May 2025 09:10:22 +0200	[thread overview]
Message-ID: <20250506-pompous-meaty-crane-97efce@kuoka> (raw)
In-Reply-To: <20250506051610.GC25533@ranerica-svr.sc.intel.com>

On Mon, May 05, 2025 at 10:16:10PM GMT, Ricardo Neri wrote:
> > If this is a device, then compatibles specific to devices. You do not
> > get different rules than all other bindings... or this does not have to
> > be binding at all. Why standard reserved-memory does not work for here?
> > 
> > Why do you need compatible in the first place?
> 
> Are you suggesting something like this?
> 
> reserved-memory {
> 	# address-cells = <2>;
> 	# size-cells = <1>;
> 
> 	wakeup_mailbox: wakeupmb@fff000 {
> 		reg = < 0x0 0xfff000 0x1000>
> 	}
> 
> and then reference to the reserved memory using the wakeup_mailbox
> phandle?

Yes just like every other, typical reserved memory block.

Best regards,
Krzysztof


  reply	other threads:[~2025-05-06  7:10 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-03 19:15 [PATCH v3 00/13] x86/hyperv/hv_vtl: Use a wakeup mailbox to boot secondary CPUs Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 01/13] x86/acpi: Add a helper function to setup the wakeup mailbox Ricardo Neri
2025-05-05  9:50   ` Rafael J. Wysocki
2025-05-06  5:20     ` Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 02/13] x86/acpi: Add a helper function to get a pointer to " Ricardo Neri
2025-05-05  9:55   ` Rafael J. Wysocki
2025-05-06  5:23     ` Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 03/13] x86/acpi: Move acpi_wakeup_cpu() and helpers to smpboot.c Ricardo Neri
2025-05-05 10:03   ` Rafael J. Wysocki
2025-05-06  5:37     ` Ricardo Neri
2025-05-06 17:26       ` Rafael J. Wysocki
2025-05-07 11:22         ` Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 04/13] dt-bindings: x86: Add CPU bindings for x86 Ricardo Neri
2025-05-03 20:33   ` Rob Herring (Arm)
2025-05-04 16:45   ` Krzysztof Kozlowski
2025-05-06  4:52     ` Ricardo Neri
2025-05-06  7:25       ` Krzysztof Kozlowski
2025-05-07 23:16         ` Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 05/13] x86/dt: Parse the `enable-method` property of CPU nodes Ricardo Neri
2025-05-12 15:54   ` Rob Herring
2025-05-14  3:00     ` Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 06/13] dt-bindings: reserved-memory: Wakeup Mailbox for Intel processors Ricardo Neri
2025-05-04 16:51   ` Krzysztof Kozlowski
2025-05-06  5:16     ` Ricardo Neri
2025-05-06  7:10       ` Krzysztof Kozlowski [this message]
2025-05-07  3:23         ` Ricardo Neri
2025-05-12 15:32           ` Rob Herring
2025-05-13 22:14             ` Ricardo Neri
2025-05-14 15:42               ` Rob Herring
2025-05-15  3:53                 ` Ricardo Neri
2025-05-19 15:29                   ` Rob Herring
2025-05-19 17:56                     ` Ricardo Neri
2025-05-24 15:56                       ` Ricardo Neri
2025-05-29 13:16                         ` Rob Herring
2025-06-02  1:31                           ` Ricardo Neri
2025-05-05 13:07   ` Rafael J. Wysocki
2025-05-06  5:50     ` Ricardo Neri
2025-05-06 14:00       ` Rafael J. Wysocki
2025-05-07 11:48         ` Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 07/13] x86/dt: Parse the " Ricardo Neri
2025-05-03 19:15 ` [PATCH v3 08/13] x86/hyperv/vtl: Set real_mode_header in hv_vtl_init_platform() Ricardo Neri
2025-05-20  1:24   ` Michael Kelley
2025-05-03 19:15 ` [PATCH v3 09/13] x86/realmode: Make the location of the trampoline configurable Ricardo Neri
2025-05-20  1:30   ` Michael Kelley
2025-05-03 19:15 ` [PATCH v3 10/13] x86/hyperv/vtl: Setup the 64-bit trampoline for TDX guests Ricardo Neri
2025-05-20  1:31   ` Michael Kelley
2025-05-03 19:15 ` [PATCH v3 11/13] x86/smpboot: Add a helper get the address of the wakeup mailbox Ricardo Neri
2025-05-20  1:32   ` Michael Kelley
2025-05-03 19:15 ` [PATCH v3 12/13] x86/hyperv/vtl: Mark the wakeup mailbox page as private Ricardo Neri
2025-05-20  1:33   ` Michael Kelley
2025-05-03 19:15 ` [PATCH v3 13/13] x86/hyperv/vtl: Use the wakeup mailbox to boot secondary CPUs Ricardo Neri
2025-05-20  1:35   ` Michael Kelley
2025-05-24  0:31     ` Ricardo Neri

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