RE: [PATCH] drm/amdgpu: Disable FRU EEPROM access for SRIOV

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Acked-by: Guchun Chen <guchun.chen@xxxxxxx>

Regards,
Guchun

-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of shaoyunl
Sent: Thursday, January 20, 2022 11:49 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Liu, Shaoyun <Shaoyun.Liu@xxxxxxx>
Subject: [PATCH] drm/amdgpu: Disable FRU EEPROM access for SRIOV

VF acces the EEPROM is blocked by security policy, we might need other way to get SKUs info for VF

Signed-off-by: shaoyunl <shaoyun.liu@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index 2a786e788627..0548e279cc9f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -40,6 +40,12 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
 	 */
 	struct atom_context *atom_ctx = adev->mode_info.atom_context;
 
+	/* The i2c access is blocked on VF
+	 * TODO: Need other way to get the info
+	 */  
+	if (amdgpu_sriov_vf(adev)
+		return false;
+
 	/* VBIOS is of the format ###-DXXXYY-##. For SKU identification,
 	 * we can use just the "DXXX" portion. If there were more models, we
 	 * could convert the 3 characters to a hex integer and use a switch
--
2.17.1




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