Re: [PATCH v8 1/7] x86/vmware: Move common macros to vmware.h

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On 4/24/24 9:06 AM, Borislav Petkov wrote:
On Mon, Apr 22, 2024 at 03:56:50PM -0700, Alexey Makhalov wrote:
Move VMware hypercall macros to vmware.h. This is a prerequisite for
the introduction of vmware_hypercall API. No functional changes besides
exporting vmware_hypercall_mode symbol.

Well, I see more.

So code movement patches should be done this way:

* first patch: sole code movement, no changes whatsoever

* follow-on patches: add changes and explain them

Because... (follow me down)...

@@ -476,8 +431,8 @@ static bool __init vmware_legacy_x2apic_available(void)
  {
  	uint32_t eax, ebx, ecx, edx;
  	VMWARE_CMD(GETVCPU_INFO, eax, ebx, ecx, edx);
-	return !(eax & BIT(VMWARE_CMD_VCPU_RESERVED)) &&
-		(eax & BIT(VMWARE_CMD_LEGACY_X2APIC));
+	return !(eax & BIT(VCPU_RESERVED)) &&
+		(eax & BIT(VCPU_LEGACY_X2APIC));

... what is that change for?

Those bit definitions are clearly vmware-specific. So why are you
changing them to something generic-ish?

In any case, this patch needs to be split as outlined above.

Thanks for prompt review. The concern is valid.
I've split this patch on 2 pieces:
1. Macro renaming - to use proper prefix GETVCPU_INFO_ instead of incorrect VMWARE_CMD_.
2. Code movement - the original idea of the patch.

Remaining patches will remain intact.

Thanks,
--Alexey



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