[pve-devel] [PATCH manager v6 5/5] fix #5175: ui: allow configuring and live migration of mapped pci resources

[Fiona Ebner]

Am 13.02.25 um 14:17 schrieb Dominik Csapak:
> if the hardware/driver is capable, the admin can now mark a pci device
> as 'live-migration-capable', which then tries enabling live migration
> for such devices.
> 
> mark it as experimental when configuring and in the migrate window
> 
> Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>

Reviewed-by: Fiona Ebner <f.ebner at proxmox.com>

> ---
> no changes in v6
>  www/manager6/window/Migrate.js    | 25 ++++++++++++++++++++-----
>  www/manager6/window/PCIMapEdit.js | 12 ++++++++++++
>  2 files changed, 32 insertions(+), 5 deletions(-)
> 
> diff --git a/www/manager6/window/Migrate.js b/www/manager6/window/Migrate.js
> index 604b63e7..46fc0cf3 100644
> --- a/www/manager6/window/Migrate.js
> +++ b/www/manager6/window/Migrate.js
> @@ -244,10 +244,10 @@ Ext.define('PVE.window.Migrate', {
>  	    }
>  
>  	    let blockingResources = [];
> -	    let mappedResources = migrateStats['mapped-resources'] ?? [];
> +	    let mappedResources = migrateStats['mapped-resource-info'] ?? {};
>  
>  	    for (const res of migrateStats.local_resources) {
> -		if (mappedResources.indexOf(res) === -1) {
> +		if (!mappedResources[res]) {
>  		    blockingResources.push(res);
>  		}
>  	    }
> @@ -271,14 +271,29 @@ Ext.define('PVE.window.Migrate', {
>  		}
>  	    }
>  
> -	    if (mappedResources && mappedResources.length) {
> -		if (vm.get('running')) {
> +	    if (mappedResources && vm.get('running')) {

Correct me if I'm wrong, but doesn't mappedResources always evaluate to
true because it's {} (and same was true for [])? To get the same as
before, don't you need to check the number of keys now? But I suppose
the code handles the case where it's empty just fine, so we could also
skip that check.

> +		let allowed = [];
> +		let notAllowed = [];
> +		for (const [key, resource] of Object.entries(mappedResources)) {
> +		    if (resource['live-migration']) {
> +			allowed.push(key);
> +		    } else {
> +			notAllowed.push(key);
> +		    }
> +		}
> +		if (notAllowed.length > 0) {
>  		    migration.possible = false;
>  		    migration.preconditions.push({
>  			text: Ext.String.format('Can\'t migrate running VM with mapped resources: {0}',
> -			mappedResources.join(', ')),
> +			notAllowed.join(', ')),
>  			severity: 'error',
>  		    });
> +		} else if (allowed.length > 0) {
> +		    migration.preconditions.push({
> +			text: Ext.String.format('Live-migrating running VM with mapped resources (Experimental): {0}',
> +			allowed.join(', ')),
> +			severity: 'warning',
> +		    });
>  		}
>  	    }
>  
> diff --git a/www/manager6/window/PCIMapEdit.js b/www/manager6/window/PCIMapEdit.js
> index faf58255..9f2ea651 100644
> --- a/www/manager6/window/PCIMapEdit.js
> +++ b/www/manager6/window/PCIMapEdit.js
> @@ -244,6 +244,18 @@ Ext.define('PVE.window.PCIMapEditWindow', {
>  			disabled: '{hideComment}',
>  		    },
>  		},
> +		{
> +		    xtype: 'proxmoxcheckbox',
> +		    fieldLabel: gettext('Live Migration Capable'),
> +		    labelWidth: 200,
> +		    boxLabel: `<i class="fa fa-exclamation-triangle warning"></i> ${gettext('Experimental')}`,
> +		    reference: 'live-migration-capable',
> +		    name: 'live-migration-capable',
> +		    cbind: {
> +			deleteEmpty: '{!isCreate}',
> +			disabled: '{hideComment}',

Pre-existing above, but might be better to rename the 'hideComment' if
we reuse it for different things.

> +		    },
> +		},
>  	    ],
>  
>  	    columnB: [